Dictionary.com
Thesaurus.com
Synonyms

flashing

American  
[flash-ing] / ˈflæʃ ɪŋ /

noun

  1. Building Trades. pieces of sheet metal or the like used to cover and protect certain joints and angles, as where a roof comes in contact with a wall or chimney, especially against leakage.

  2. the act of creating an artificial flood in a conduit or stream, as in a sewer for cleansing it.

  3. Photography, Movies. the process of increasing film speed by exposing undeveloped film briefly to a weak light source before using it or of exposing photographic printing paper to reduce contrast.


flashing British  
/ ˈflæʃɪŋ /

noun

  1. a weatherproof material, esp thin sheet metal, used to cover the valleys between the slopes of a roof, the junction between a chimney and a roof, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of flashing

First recorded in 1775–85; flash + -ing 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Beyond the Big Three, let’s look at some flashing yellow lights in the public sphere.

From Barron's • May 29, 2026

S&P 500 analysis shows technical sell signals are flashing despite Nvidia earnings hype.

From The Wall Street Journal • May 21, 2026

“When does the president the sleep?” asked Colbert, before flashing a picture of Trump dozed off at an Oval Office event.

From Los Angeles Times • May 20, 2026

"I saw the flashing lights behind me and I was going 'oh, my God, what have I done?'," she said.

From BBC • May 14, 2026

The movie truck rattled behind me on the street, the backward lettering of Metro Studio flashing in its reflection in the shop window.

From "The Red Car to Hollywood" by Jennie Liu

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "flashing" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com