collateral damage

American  

noun

1. the killing of civilians in a military attack.

2. any damage incidental to an activity.

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collateral damage British  

noun

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

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Etymology

Origin of collateral damage

First recorded in 1985–90

Example Sentences

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

Saini says his university did see a slight dip in international admissions after 2023, driven both by tighter visa rules and diplomatic tensions - but calls it "collateral damage" rather than a direct hit.

From BBC • Apr. 14, 2026

“We’re trying to find ways to make sure that we’re not collateral damage in this giant build-out that may happen,” Aboud said.

From The Wall Street Journal • Apr. 12, 2026

But the collateral damage of this era of narrowed learning is far harder to measure and will be recognized, if at all, only years into the future.

From "Drama High" by Michael Sokolove