Ask Difference

Blink vs. Flashing — What's the Difference?

Edited by Tayyaba Rehman — By Fiza Rafique — Updated on May 7, 2024
Blink involves quick opening and closing of the eyes, primarily for eye protection and moisture; flashing refers to bursts of light or images designed to capture attention or convey signals.
Blink vs. Flashing — What's the Difference?

Difference Between Blink and Flashing

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Key Differences

Blinking is a natural, involuntary action often associated with protecting the eyes from irritants and maintaining moisture, while flashing typically involves deliberate bursts of light or signals intended to alert or capture attention.
Blinks are generally uniform and consistent in duration, typically lasting about 100-400 milliseconds, whereas the duration and frequency of flashing can vary significantly depending on its purpose, like signaling or alarming.
In human behavior, blinking serves as an essential physiological function to ensure eye health and comfort, while flashing lights are used in technology, signage, and communication to convey specific information or warnings.
For example, while a person blinks unconsciously, a flashing traffic light is designed to command attention and prompt action.
Blinking occurs in a biological context across many species, serving similar protective and hydrating functions, whereas flashing is a human-created phenomenon, often engineered into devices or used in artistic media to produce a desired effect.
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Comparison Chart

Definition

Rapid opening and closing of eyes
Emitting light in sudden, brief bursts

Primary Function

Eye protection and moisture
Attraction of attention or signal transmission

Frequency

Consistent, multiple times per minute
Varies widely, can be irregular or patterned

Duration

Short, about 100-400 milliseconds
Can be very brief or extended, depending on intent

Associated Context

Biological and involuntary
Technological, intentional, and varies by application

Compare with Definitions

Blink

To quickly open and close the eyelids.
She blinked rapidly to clear her vision.

Flashing

To convey a signal using light.
The lighthouse was flashing a warning.

Blink

To ignore or pretend not to notice.
She blinked at the obvious error in the report.

Flashing

Emitting light in sudden, intermittent bursts.
The emergency vehicle was flashing its lights.

Blink

A very short moment; instant.
I'll be back in the blink of an eye.

Flashing

Displaying text or other visuals briefly on a screen.
The message kept flashing on her phone.

Blink

To react with surprise or mild disapproval.
He didn't even blink when they announced the price.

Flashing

Making a sudden, brief appearance.
A deer flashed through the underbrush.

Blink

To briefly interrupt.
The screen blinked off and then on again.

Flashing

To expose oneself suddenly and publicly.
The man was arrested for flashing in the park.

Blink

To close and open one or both of the eyes rapidly.

Flashing

Sheet metal used to reinforce and weatherproof the joints and angles of a roof.

Blink

To look in astonishment or disbelief, typically with the eyes blinking
Stood blinking at the money they found in the drawer.
Blinked at the results of the experiment.

Flashing

A sudden blazing or bursting, as of fire or water.

Blink

To look through half-closed eyes, as in a bright glare; squint
Blinked at the page trying to make out the letters.

Flashing

(roofing) Components used to weatherproof or seal roof system edges at perimeters, penetrations, walls, expansion joints, valleys, drains and other places where the roof covering is interrupted or terminated.

Blink

To give off light with intermittent gleams; flash on and off
"blazing neon signs, brilliant shop windows, decorations blinking across the fronts of half-finished tower blocks" (Jess Row).

Flashing

The process of getting rid of gaps on shelves by bringing products from the back of the shelf to the front to create a 'fuller' shelf.

Blink

To pretend to be ignorant of; disregard or condone
A mayor who refused to blink at corruption.

Flashing

The blinking of a light source, such as a light bulb or computer's cursor.
The incessant flashing of the neon sign kept the neighborhood awake.

Blink

To waver or back down, as in a contest of wills
"This was the first genuine, direct confrontation between this administration and the Soviets. It was the U.S.A. that blinked" (Zbigniew Brzezinski).

Flashing

The exposing of one's naked body, or part of it, in public briefly (the action of the verb to flash).

Blink

To cause to blink
Blinked his eyes to clear his vision.

Flashing

(jewellery) The use of rhodium plating to temporarily enhance a ring's durability and shine.

Blink

To hold back or remove from the eyes by blinking
Blinked back the tears.

Flashing

Present participle of flash

Blink

To refuse to recognize or face
Blink ugly facts.

Flashing

The creation of an artifical flood by the sudden letting in of a body of water; - called also flushing.

Blink

To transmit (a message) with a flashing light.

Flashing

Pieces of metal, built into the joints of a wall, so as to lap over the edge of the gutters or to cover the edge of the roofing; also, similar pieces used to cover the valleys of roofs of slate, shingles, or the like. By extension, the metal covering of ridges and hips of roofs; also, in the United States, the protecting of angles and breaks in walls of frame houses with waterproof material, tarred paper, or the like. Cf. Filleting.

Blink

The act or an instance of rapidly closing and opening the eyes or an eye.

Flashing

The reheating of an article at the furnace aperture during manufacture to restore its plastic condition; esp., the reheating of a globe of crown glass to allow it to assume a flat shape as it is rotated.

Blink

An instant
I'll be back in a blink.

Flashing

A short vivid experience;
A flash of emotion swept over him
The flashings of pain were a warning

Blink

(Scots) A quick look or glimpse; a glance.

Flashing

Sheet metal shaped and attached to a roof for strength and weatherproofing

Blink

A flash of light; a twinkle.

Flashing

Emitting light in sudden short or intermittent bursts;
Flashing lightning and roaring thunder

Blink

See iceblink.

Blink

(intransitive) To close and reopen both eyes quickly.
The loser in the staring game is the person who blinks first.

Blink

(transitive) To close and reopen one's eyes to remove (something) from on or around the eyes.
She blinked her tears away.

Blink

To wink; to twinkle with, or as with, the eye.

Blink

To see with the eyes half shut, or indistinctly and with frequent winking, as a person with weak eyes.

Blink

To shine, especially with intermittent light; to twinkle; to flicker; to glimmer, as a lamp.

Blink

To glance.

Blink

To flash on and off at regular intervals.
The blinking text on the screen was distracting.

Blink

To flash headlights on a car at.
An urban legend claims that gang members will attack anyone who blinks them.

Blink

To send a signal with a lighting device.
Don't come to the door until I blink twice.

Blink

(hyperbole) To perform the smallest action that could solicit a response.

Blink

(transitive) To shut out of sight; to evade; to shirk.
To blink the question

Blink

To turn slightly sour, or blinky, as beer, milk, etc.

Blink

To teleport, mostly for short distances.

Blink

The act of quickly closing both eyes and opening them again.

Blink

(figuratively) The time needed to close and reopen one's eyes.

Blink

(computing) A text formatting feature that causes text to disappear and reappear as a form of visual emphasis.

Blink

A glimpse or glance.

Blink

Gleam; glimmer; sparkle

Blink

(nautical) The dazzling whiteness about the horizon caused by the reflection of light from fields of ice at sea; iceblink

Blink

Boughs cast where deer are to pass, in order to turn or check them.

Blink

(video games) An ability that allows teleporting, mostly for short distances

Blink

To wink; to twinkle with, or as with, the eye.
One eye was blinking, and one leg was lame.

Blink

To see with the eyes half shut, or indistinctly and with frequent winking, as a person with weak eyes.
Show me thy chink, to blink through with mine eyne.

Blink

To shine, esp. with intermittent light; to twinkle; to flicker; to glimmer, as a lamp.
The dew was falling fast, the stars began to blink.
The sun blinked fair on pool and stream .

Blink

To turn slightly sour, as beer, mild, etc.

Blink

To shut out of sight; to avoid, or purposely evade; to shirk; as, to blink the question.

Blink

To trick; to deceive.

Blink

A glimpse or glance.
This is the first blink that ever I had of him.

Blink

Gleam; glimmer; sparkle.
Not a blink of light was there.

Blink

The dazzling whiteness about the horizon caused by the reflection of light from fields of ice at sea; ice blink.

Blink

Boughs cast where deer are to pass, to turn or check them.

Blink

A reflex that closes and opens the eyes rapidly

Blink

Briefly shut the eyes;
The TV announcer never seems to blink

Blink

Force to go away by blinking;
Blink away tears

Blink

Gleam or glow intermittently;
The lights were flashing

Common Curiosities

How often does a typical person blink?

A typical person blinks about 15-20 times per minute.

Is blinking the same across all animals?

Most vertebrates blink to protect and moisten their eyes, though the frequency and method can vary.

Can blinking rates indicate health issues?

Yes, abnormal blinking rates can be a sign of conditions like dry eyes or neurological disorders.

What is the difference in energy usage between blinking and flashing lights?

Flashing lights generally consume more energy than the biological energy used in blinking.

What are common uses of flashing lights?

Common uses include signaling in vehicles, emergency alerts, and decorative lighting.

Can flashing lights have different colors?

Yes, flashing lights can vary in color depending on their intended use.

What is the primary purpose of blinking?

The primary purpose of blinking is to keep the eyes clean and well-moisturized.

Are there regulations regarding flashing lights on vehicles?

Yes, regulations specify the use, color, and frequency of flashing lights for different types of vehicles.

Can blinking be controlled voluntarily?

Yes, while blinking is typically involuntary, it can be consciously controlled.

Why might someone blink more frequently in certain situations?

Increased blinking can occur due to eye irritation, stress, or when focusing intently.

What is an example of a natural blinking reflex?

The corneal reflex is a natural blinking response to objects approaching the eye.

How do flashing signals improve safety?

They provide clear and immediate communication of hazards or operational states.

What psychological effects can flashing lights have?

Flashing lights can cause stress or seizures in susceptible individuals.

How does the mechanism of blinking differ from flashing?

Blinking is a biological and mostly involuntary action, while flashing is a controlled, artificial occurrence.

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Author Spotlight

Written by
Fiza Rafique
Fiza Rafique is a skilled content writer at AskDifference.com, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
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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