Synonyms

collateral damage

American

noun

the killing of civilians in a military attack.
any damage incidental to an activity.

collateral damage British

noun

military unintentional damage to civil property and civilian casualties, caused by military operations

"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

Etymology

Origin of collateral damage

First recorded in 1985–90

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.

Multiyear conversions often reduce this collateral damage and remain one of the most reliable, low-error strategies for reducing taxes over time.

From MarketWatch • May 8, 2026

This targeted approach allows the immune system to remove threats efficiently while minimizing collateral damage to nearby tissue.

From Science Daily • Apr. 30, 2026

No one is safe from being collateral damage by the time Jamie Bell plays Niall later in life.

From BBC • Apr. 24, 2026

Godzilla is a creature of thoughtless collateral damage.

From Salon • Mar. 20, 2026

She’s nothing but collateral damage in this whole mess, and it makes me feel some kind of way.

From "Dread Nation" by Justina Ireland

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