Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “flash”

flash

verb (SHINE SUDDENLY)    /flæʃ/
B2 [I or T] to shine brightly and suddenly, or to make something shine in this way: Stop flashing that light in my eyes! The lightning flashed and distant thunder rolled. You'd better slow down, that car was flashing (its lights) at you.Emitting and casting light [I] literary If someone's eyes flash, they look bright because of the anger or excitement the person is feeling.Expressing and showing feelings
(Definition of flash verb (SHINE SUDDENLY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of flash

Definitions of “flash” in other dictionaries

Word of the Day

neighbourly

friendly or helpful

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More