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Showing results for flashing. Search instead for unlashing.
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

  • interflashing noun
  • unflashing adjective

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.

As the UN Secretary General António Guterres has put it, "every key climate indicator is flashing red".

From BBC • Apr. 15, 2026

It’s fueling the A.I. bubble, it’s coming to your retirement portfolio—and it’s flashing a lot of warning signs right now.

From Slate • Apr. 3, 2026

He was a 25-year-old tinkering with self-tanners, but all the intrigue and action seemed to be around the lab next door, with its strange music, flashing lights and tinfoil covering the porthole.

From The Wall Street Journal • Mar. 18, 2026

Writing on X, Robert A. Pape, a longtime scholar of terrorism, posted: “After tracking terrorism for 25 years, this is a flashing red light — as bright as I’ve seen prior to a serious attack.”

From Los Angeles Times • Mar. 18, 2026

“One night...there was a tremendous storm blowing, lightning was flashing and flares were still going up,” British rifleman Henry Williamson recalled.

From "The War to End All Wars: World War I" by Russell Freedman

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.