Ask Difference

Bar vs. Rod — What's the Difference?

By Tayyaba Rehman — Updated on November 3, 2023
A bar is a long, typically rigid piece of solid material used for construction or a venue for drinks, while a rod is a thin, straight bar, often flexible or used for catching fish.
Bar vs. Rod — What's the Difference?

Difference Between Bar and Rod

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Key Differences

A bar can refer to a piece of solid material, often metal or wood, that is longer than it is wide or thick, used structurally or as a barrier. Bars can also denote establishments where alcohol is served. A rod, by contrast, is usually a slender, elongated piece of metal, plastic, or wood, often used to reinforce, support, or as a tool for fishing.
In construction, bars are materials like rebar, used to reinforce concrete. Rods, however, are often used in tension applications within structures or as components in machinery, such as piston rods in engines.
When visiting a bar, one thinks of a place to consume drinks and socialize, which is not related to the function of a rod. Conversely, a rod may be associated with precision tools, scientific equipment like lightning rods, or hobbies such as fishing rods, which are designed to bend and flex.
Bars can be used as measures of pressure, musical measures, or as legal terms, referring to the profession or barrier in courtrooms. Rods don't share these meanings and are instead sometimes used as units of measure (especially historically), equivalent to 5.5 yards.
In everyday language, bar can also mean to prohibit or block, such as "barred from entry," while rod does not carry this connotation. A rod can symbolize authority or discipline, as in "spare the rod, spoil the child," a usage not shared by bar.
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Comparison Chart

Physical Form

Wider and thicker, less flexible
Thinner and often more flexible

Usage in Construction

Used for reinforcement in concrete
Used in tension applications

Associative Meaning

Alcohol-serving establishment or barrier
Fishing tool or measuring unit

Symbolism

Legal profession, pressure, prohibition
Authority, discipline, precision

Common Materials

Metal, wood, reinforced steel
Metal, fiberglass, plastic

Compare with Definitions

Bar

Legal term or prohibition
She passed the bar exam last year.

Rod

Symbol of discipline or authority
The teacher’s rod was feared by all students.

Bar

A long rigid piece of wood, metal, or similar material, typically used as an obstruction, fastening, or weapon
Bars on the windows
An iron bar

Rod

A fishing rod.

Bar

A counter in a pub, restaurant, or cafe across which drinks or refreshments are served
Standing at the bar

Rod

A piston rod.

Bar

A barrier or restriction to an action or advance
Political differences are not necessarily a bar to a good relationship

Rod

An often expandable horizontal bar, especially of metal, used to suspend household items such as curtains or towels.

Bar

Any of the short sections or measures, typically of equal time value, into which a piece of music is divided, shown on a score by vertical lines across the stave
The opening bars of the first hymn

Rod

A leveling rod.

Bar

A partition in a court room, now usually notional, beyond which most people may not pass and at which an accused person stands
The prisoner at the bar

Rod

A lightning rod.

Bar

The profession of barrister
His dismissal from the Singapore Bar

Rod

A divining rod.

Bar

A unit of pressure equivalent to a hundred thousand newtons per square metre or approximately one atmosphere.

Rod

A measuring stick.

Bar

Fasten (something, especially a door or window) with a bar or bars
She bolted and barred the door

Rod

One of the horizontal elements in a truss system underneath a rail car, especially a freight car.

Bar

Prevent or prohibit (someone) from doing something or from going somewhere
Journalists had been barred from covering the elections

Rod

A shoot or stem cut from or growing as part of a woody plant.

Bar

Mark (something) with bars or stripes
His face was barred with light

Rod

A stick or bundle of sticks or switches used to give punishment by whipping.

Bar

Except for
His kids were all gone now, bar one

Rod

Punishment; correction.

Bar

A relatively long, straight, rigid piece of solid material used as a fastener, support, barrier, or structural or mechanical member.

Rod

A scepter, staff, or wand symbolizing power or authority.

Bar

A solid oblong block of a substance or combination of ingredients, such as soap or candy.

Rod

Power or dominion, especially of a tyrannical nature
"under the rod of a cruel slavery" (John Henry Newman).

Bar

A usually rectangular slice of any of various flat baked confections that are typically dense in texture.

Rod

A linear measure equal to 5.5 yards or 16.5 feet (5.03 meters). Also called pole2.

Bar

A rectangular block of a precious metal.

Rod

The square of this measure, equal to 30.25 square yards or 272.25 square feet (25.30 square meters).

Bar

See horizontal bar.

Rod

(Anatomy) Any of various rod-shaped cells in the retina that respond to dim light. Also called rod cell.

Bar

A horizontal rod that marks the height to be cleared in high jumping or pole vaulting.

Rod

(Microbiology) An elongated bacterium; a bacillus.

Bar

A standard, expectation, or degree of requirement
A leader whose example set a high bar for others.

Rod

(Slang) A pistol or revolver.

Bar

Something that impedes or prevents action or progress
A poor education was a bar to his ambitions.

Rod

Vulgar Slang A penis, especially when erect.

Bar

A ridge, as of sand or gravel, on a shore or streambed, that is formed by the action of tides or currents.

Rod

A straight, round stick, shaft, bar, cane, or staff.
The circus strong man proved his strength by bending an iron rod, and then straightening it.

Bar

A narrow marking, as a stripe or band.

Rod

A longitudinal pole used for forming part of a framework such as an awning or tent.

Bar

A narrow metal or embroidered strip worn on a military uniform indicating rank or service.

Rod

(fishing) A long slender usually tapering pole used for angling; fishing rod.
When I hooked a snake and not a fish, I got so scared I dropped my rod in the water.

Bar

Chiefly British A small insignia worn on a military decoration indicating that it has been awarded an additional time.

Rod

A stick, pole, or bundle of switches or twigs (such as a birch), used for personal defense or to administer corporal punishment by whipping.

Bar

(Heraldry) A pair of horizontal parallel lines drawn across a shield.

Rod

An implement resembling and/or supplanting a rod (particularly a cane) that is used for corporal punishment, and metonymically called the rod, regardless of its actual shape and composition.
The judge imposed on the thief a sentence of fifteen strokes with the rod.

Bar

The nullification, defeat, or prevention of a claim or action.

Rod

A stick used to measure distance, by using its established length or task-specific temporary marks along its length, or by dint of specific graduated marks.
I notched a rod and used it to measure the length of rope to cut.

Bar

The process by which nullification, defeat, or prevention is achieved.

Rod

(archaic) A unit of length equal to 1 pole, a perch, 4 chain, 2 yards, 2 feet, or exactly 5.0292 meters (these being all equivalent).

Bar

The railing in a courtroom separating the participants in a legal proceeding from the spectators.

Rod

An implement held vertically and viewed through an optical surveying instrument such as a transit, used to measure distance in land surveying and construction layout; an engineer's rod, surveyor's rod, surveying rod, leveling rod, ranging rod. The modern (US) engineer's or surveyor's rod commonly is eight or ten feet long and often designed to extend higher. In former times a surveyor's rod often was a single wooden pole or composed of multiple sectioned and socketed pieces, and besides serving as a sighting target was used to measure distance on the ground horizontally, hence for convenience was of one rod or pole in length, that is, 2 yards.

Bar

A court or courtroom.

Rod

(archaic) A unit of area equal to a square rod, 4 square yards or 160 acre.
The house had a small yard of about six rods in size.

Bar

Attorneys considered as a group. Used with the.

Rod

A straight bar that unites moving parts of a machine, for holding parts together as a connecting rod or for transferring power as a driveshaft.
The engine threw a rod, and then went to pieces before our eyes, springs and coils shooting in all directions.

Bar

The profession of law. Used with the.

Rod

(anatomy) A rod cell: a rod-shaped cell in the eye that is sensitive to light.
The rods are more sensitive than the cones, but do not discern color.

Bar

A vertical line drawn through a staff to mark off a measure.

Rod

(biology) Any of a number of long, slender microorganisms.
He applied a gram positive stain, looking for rods indicative of Listeria.

Bar

A measure.

Rod

(chemistry) A stirring rod: a glass rod, typically about 6 inches to 1 foot long and 8 to 4 inch in diameter that can be used to stir liquids in flasks or beakers.

Bar

Variant of barre.

Rod

(slang) A pistol; a gun.

Bar

A counter at which drinks, especially alcoholic drinks, and sometimes food, are served.

Rod

A penis.

Bar

An establishment or room having such a counter.

Rod

(slang) A hot rod, an automobile or other passenger motor vehicle modified to run faster and often with exterior cosmetic alterations, especially one based originally on a pre-1940s model or (currently) denoting any older vehicle thus modified.

Bar

A unit of pressure equal to one million (106) dynes per square centimeter.

Rod

(ufology) A rod-shaped object that appears in photographs or videos traveling at high speed, not seen by the person recording the event, often associated with extraterrestrial entities.

Bar

To fasten securely with a long, straight, rigid piece of material
Barred the gate.

Rod

(mathematics) A Cuisenaire rod.

Bar

To shut in or confine
Barred themselves in the basement.

Rod

(rail transport) A coupling rod or connecting rod, which links the driving wheels of a steam locomotive, and some diesel shunters and early electric locomotives.

Bar

To obstruct or impede; block
Barred the access route.

Rod

(construction) To reinforce concrete with metal rods.

Bar

To keep out; exclude
Tourists are barred from this room.

Rod

(transitive) To furnish with rods, especially lightning rods.

Bar

To prohibit or prevent (someone) from doing something
Failing the eye exam barred him from driving.

Rod

To penetrate sexually.

Bar

To prohibit (an action)
The state bars the dumping of waste in the river.

Rod

(slang) To hot rod.

Bar

(Law) To nullify, defeat, or prevent (a claim or action).

Rod

A straight and slender stick; a wand; hence, any slender bar, as of wood or metal (applied to various purposes).
He that spareth his rod hateth his son.

Bar

To rule out; except
Can we bar the possibility of foul play?.

Rod

A kind of sceptor, or badge of office; hence, figuratively, power; authority; tyranny; oppression.

Bar

To mark with stripes or bands.

Rod

A measure of length containing sixteen and a half feet; - called also perch, and pole.

Bar

Chiefly British Except for; excluding
This was your best performance, bar none.

Rod

A linear measure of 16.5 feet

Bar

A solid, more or less rigid object of metal or wood with a uniform cross-section smaller than its length.
The window was protected by steel bars.

Rod

A long thin implement made of metal or wood

Bar

A solid metal object with uniform (round, square, hexagonal, octagonal or rectangular) cross-section; in the US its smallest dimension is 4 inch or greater, a piece of thinner material being called a strip.
Ancient Sparta used iron bars instead of handy coins in more valuable alloy, to physically discourage the use of money.
We are expecting a carload of bar tomorrow.

Rod

Any rod-shaped bacterium

Bar

A cuboid piece of any solid commodity.
Bar of chocolate
Bar of soap

Rod

A square rod of land

Bar

A broad shaft, band, or stripe.
A bar of light
A bar of colour

Rod

Visual receptor cell sensitive to dim light

Bar

A long, narrow drawn or printed rectangle, cuboid or cylinder, especially as used in a bar code or a bar chart.

Rod

A gangster's pistol

Bar

(typography) Any of various lines used as punctuation or diacritics, such as the pipe ⟨{{!}}⟩, fraction bar (as in 12), and strikethrough (as in Ⱥ), formerly including oblique marks such as the slash.

Rod

Slim, straight piece of material
He measured the length with a metal rod.

Bar

(mathematics) The sign indicating that the characteristic of a logarithm is negative, conventionally placed above the digit(s) to show that it applies to the characteristic only and not to the mantissa.

Rod

Tool for angling
She caught a big fish with her new fishing rod.

Bar

(physics) A similar sign indicating that the charge on a particle is the negative of its usual value (and that consequently the particle is in fact an antiparticle).

Rod

Measuring unit
The old fence was about ten rods long.

Bar

A business selling alcoholic drinks for consumption on the premises, or the premises themselves; a public house.
The street was lined with all-night bars.

Rod

Component in machinery
The piston rod in the engine needs replacement.

Bar

The counter of such premises.
Step up to the bar and order a drink.

Bar

A counter, or simply a cabinet, from which alcoholic drinks are served in a private house or a hotel room.

Bar

, juice bar, etc.}} Premises or a counter serving any type of beverage.

Bar

An establishment where alcohol and sometimes other refreshments are served.

Bar

An informal establishment selling food to be consumed on the premises.
A burger bar
A local fish bar

Bar

An establishment offering cosmetic services.
A nail bar; a brow bar

Bar

An official order or pronouncement that prohibits some activity.
The club has lifted its bar on women members.

Bar

Anything that obstructs, hinders, or prevents; an obstruction; a barrier.

Bar

A metasyntactic variable representing an unspecified entity, often the second in a series, following foo.
Suppose we have four objects, foo, bar, baz and quux.

Bar

A dividing line (physical or notional) in the chamber of a legislature beyond which only members and officials may pass.

Bar

The railing surrounding the part of a courtroom in which the judges, lawyers, defendants and witnesses stay.

Bar

The bar exam, the legal licensing exam.
He's studying hard to pass the Bar this time; he's failed it twice before.

Bar

Collectively, lawyers or the legal profession; specifically applied to barristers in some countries, but including all lawyers in others.
He was called to the bar, he became a barrister.

Bar

One of an array of bar-shaped symbols that display the level of something, such as wireless signal strength or battery life remaining.
I don't have any bars in the middle of this desert.

Bar

(music) A vertical line across a musical staff dividing written music into sections, typically of equal durational value.

Bar

(music) One of those musical sections.

Bar

(sports) A horizontal pole that must be crossed in the high jump and pole vault.

Bar

(metaphorical) Any level of achievement regarded as a challenge to be overcome.

Bar

The crossbar.

Bar

(backgammon) The central divider between the inner and outer table of a backgammon board, where stones are placed if they are hit.

Bar

An addition to a military medal, on account of a subsequent act.

Bar

A linear shoaling landform feature within a body of water.

Bar

A ridge or succession of ridges of sand or other substance, especially a formation extending across the mouth of a river or harbor or off a beach, and which may obstruct navigation. (FM 55-501).

Bar

(heraldry) One of the ordinaries in heraldry; a diminutive of a fess.

Bar

A city gate, in some British place names.

Bar

(mining) A drilling or tamping rod.

Bar

(mining) A vein or dike crossing a lode.

Bar

(architecture) A gatehouse of a castle or fortified town.

Bar

(farriery) The part of the crust of a horse's hoof which is bent inwards towards the frog at the heel on each side, and extends into the centre of the sole.

Bar

The space between the tusks and grinders in the upper jaw of a horse, in which the bit is placed.

Bar

(slang) A measure of drugs, typically one ounce.

Bar

A non-SI unit of pressure equal to 100,000 pascals, approximately equal to atmospheric pressure at sea level.

Bar

(transitive) To obstruct the passage of (someone or something).
Our way was barred by a huge rockfall.

Bar

(transitive) To prohibit.
I couldn't get into the nightclub because I had been barred.

Bar

(transitive) To lock or bolt with a bar.
Bar the door

Bar

To imprint or paint with bars, to stripe.

Bar

Except, other than, besides.
He invited everyone to his wedding bar his ex-wife.

Bar

(horse racing) Denotes the minimum odds offered on other horses not mentioned by name.
Leg At Each Corner is at 3/1, Lost My Shirt 5/1, and it's 10/1 bar.

Bar

A piece of wood, metal, or other material, long in proportion to its breadth or thickness, used as a lever and for various other purposes, but especially for a hindrance, obstruction, or fastening; as, the bars of a fence or gate; the bar of a door.
Thou shalt make bars of shittim wood.

Bar

An indefinite quantity of some substance, so shaped as to be long in proportion to its breadth and thickness; as, a bar of gold or of lead; a bar of soap.

Bar

Anything which obstructs, hinders, or prevents; an obstruction; a barrier.
Must I new bars to my own joy create?

Bar

A bank of sand, gravel, or other matter, esp. at the mouth of a river or harbor, obstructing navigation.

Bar

Any railing that divides a room, or office, or hall of assembly, in order to reserve a space for those having special privileges; as, the bar of the House of Commons.

Bar

The railing that incloses the place which counsel occupy in courts of justice. Hence, the phrase at the bar of the court signifies in open court.

Bar

Any tribunal; as, the bar of public opinion; the bar of God.

Bar

A barrier or counter, over which liquors and food are passed to customers; hence, the portion of the room behind the counter where liquors for sale are kept.

Bar

An ordinary, like a fess but narrower, occupying only one fifth part of the field.

Bar

A broad shaft, or band, or stripe; as, a bar of light; a bar of color.

Bar

A vertical line across the staff. Bars divide the staff into spaces which represent measures, and are themselves called measures.

Bar

The space between the tusks and grinders in the upper jaw of a horse, in which the bit is placed.

Bar

A drilling or tamping rod.

Bar

A gatehouse of a castle or fortified town.

Bar

To fasten with a bar; as, to bar a door or gate.

Bar

To restrict or confine, as if by a bar; to hinder; to obstruct; to prevent; to prohibit; as, to bar the entrance of evil; distance bars our intercourse; the statute bars my right; the right is barred by time; a release bars the plaintiff's recovery; - sometimes with up.
He barely looked the idea in the face, and hastened to bar it in its dungeon.

Bar

To except; to exclude by exception.
Nay, but I bar to-night: you shall not gauge meBy what we do to-night.

Bar

To cross with one or more stripes or lines.
For the sake of distinguishing the feet more clearly, I have barred them singly.

Bar

A room or establishment where alcoholic drinks are served over a counter;
He drowned his sorrows in whiskey at the bar

Bar

A counter where you can obtain food or drink;
He bought a hot dog and a coke at the bar

Bar

A rigid piece of metal or wood; usually used as a fastening or obstruction or weapon;
There were bars in the windows to prevent escape

Bar

Musical notation for a repeating pattern of musical beats;
The orchestra omitted the last twelve bars of the song

Bar

An obstruction (usually metal) placed at the top of a goal;
It was an excellent kick but the ball hit the bar

Bar

The act of preventing;
There was no bar against leaving
Money was allocated to study the cause and prevention of influenza

Bar

(meteorology) a unit of pressure equal to a million dynes per square centimeter;
Unfortunately some writers have used bar for one dyne per square centimeter

Bar

A submerged (or partly submerged) ridge in a river or along a shore;
The boat ran aground on a submerged bar in the river

Bar

The body of individuals qualified to practice law in a particular jurisdiction;
He was admitted to the bar in New Jersey

Bar

A block of solid substance (such as soap or wax);
A bar of chocolate

Bar

A portable .30 caliber magazine-fed automatic rifle operated by gas pressure; used by United States troops in World War I and in World War II and in the Korean War

Bar

A horizontal rod that serves as a support for gymnasts as they perform exercises

Bar

A heating element in an electric fire;
An electric fire with three bars

Bar

(law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried;
Spectators were not allowed past the bar

Bar

Prevent from entering; keep out;
He was barred from membership in the club

Bar

Render unsuitable for passage;
Block the way
Barricade the streets
Stop the busy road

Bar

Expel, as if by official decree;
He was banished from his own country

Bar

Secure with, or as if with, bars;
He barred the door

Bar

Rigid piece of material used for construction
The window was secured with iron bars.

Bar

Establishment serving alcoholic beverages
They went to the bar for cocktails.

Bar

Unit of pressure
The gas tank has a pressure of 5 bars.

Bar

Musical term for a measure
The song's intro is 4 bars long.

Common Curiosities

Is a rod used for construction?

Yes, rods are used in construction for support and tension.

Do bars come in standard sizes?

Yes, bars like rebar come in standardized sizes for construction.

What does 'bar' mean in legal terms?

It refers to the legal profession or a barrier in a courtroom.

What is a gold bar?

It's a bar of gold often used for investment or currency reserves.

Are rods flexible?

Some rods, like fishing rods, are designed to be flexible.

Can 'bar' indicate a prohibition?

Yes, to 'bar' can mean to prohibit or block entry.

What activities involve a rod?

Fishing, measuring, and certain scientific applications.

Are rods always cylindrical?

Most rods are cylindrical, but they can have different cross-sections.

Can a bar be made of plastic?

Yes, bars can be made of various materials, including plastic.

What's a curtain rod?

It's a type of rod designed to hold curtains above a window.

Can 'bar' be a verb?

Yes, as in "to bar someone from entering."

Is a rod a unit of length?

Historically, yes; a rod is an old unit of length, equal to 5.5 yards.

What is the 'rod of Asclepius'?

It's a symbol associated with medicine and healing.

Do bars have a legal dimension?

Yes, in terms of practicing law and courtroom designations.

Can 'bar' mean musical measure?

Yes, it refers to a segment of time in a piece of music.

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.

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