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  • tear gas
    tear gas
    noun
    a gas that makes the eyes smart and water, thus producing a temporary blindness, used in modern warfare, to quell riots, etc.
  • tear-gas
    tear-gas
    verb (used with object)
    to subject to tear gas.
Synonyms

tear gas

1 American  
[teer] / tɪər /

noun

  1. a gas that makes the eyes smart and water, thus producing a temporary blindness, used in modern warfare, to quell riots, etc.


tear-gas 2 American  
[teer-gas] / ˈtɪərˌgæs /

verb (used with object)

tear-gassed, tear-gassing
  1. to subject to tear gas.


tear gas British  
/ tɪə /

noun

  1. Also called: lacrimator. any one of a number of gases or vapours that make the eyes smart and water, causing temporary blindness; usually dispersed from grenades and used in warfare and to control riots

"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 tear gas1

First recorded in 1915–20

Origin of tear-gas2

First recorded in 1945–50

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.

See Examples For:

"Authorities must allow young people to exercise these rights without fear of being hit by tear gas grenades or batons, or being arbitrarily taken into police custody," said Amnesty France president Anne Savinel-Barras.

From Barron's ● Oct. 4, 2026

The cites worst affected Wednesday included Paris, Bordeaux in the southwest and Lyon in the southeast, and the northern city of Lille where police again used tear gas in clashes, AFP correspondents said.

From Barron's ● Sep. 30, 2026

ICE agents then deployed tear gas into the home and took the men and their partners into custody, according to the documents and other court records.

From Salon ● Sep. 4, 2026

After being taken to the hospital to be treated for exposure to tear gas, he was released and booked into the Valley jail.

From Los Angeles Times ● Aug. 29, 2026

Jomo knew what tear gas was and laughed long and hard when Ugwu told him what he wanted to use it for.

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

“It’s a different thing to ask, ‘Will you show up to this protest, where police might come and tear-gas us?’ versus ‘We’re getting whistles. Do you think you could help us with some extra baggies?’

From Slate ● Jan. 31, 2026

In the confrontation that followed, one of the agents tossed a tear-gas canister, which an employee kicked under their vehicle, enveloping it with noxious fumes.

From The Wall Street Journal ● Jan. 20, 2026

The announcement comes after Caputo, a former campaign aide to President Trump, faced criticism on Sunday for a series of aggressive, late-night tweets suggesting people tear-gas journalists and arguing with other users.

From Fox News ● Sep. 16, 2020

Fifty people were treated for tear-gas inhalation at hospitals in Baghdad, a health ministry source told the BBC.

From BBC ● Dec. 31, 2019

The gun rack, set between two of the eight windows, held a Remington shotgun, a Colt AR-15 assault rifle, a tear-gas gun, and many rounds of ammunition.

From "Newjack: Guarding Sing Sing" by Ted Conover

Mayor Ted Wheeler sided with protesters, at one point standing alongside black-clad demonstrators as they were tear-gassed.

From Los Angeles Times ● Feb. 10, 2023

The French government initially blamed Liverpool fans and fake tickets for the crowd chaos that led to supporters being tear-gassed and robbed.

From BBC ● Jul. 13, 2022

It was forwarding information about, you know, "If you are tear-gassed, don't use water, use milk."

From Salon ● May 7, 2022

“Just got tear-gassed, but we’re good, baby, we’re good! We’re pushing forward now!”

From Seattle Times ● Nov. 9, 2021

Thackeray reminisced at length about being tear-gassed blind in the November 1969 antiwar protests in Washington Circle, covering them for her college paper.

From The Hacker Crackdown, law and disorder on the electronic frontier by Bruce Sterling

“I actually think we could be promoting COVID-19 by tear-gassing protesters,” said Balmes.

From Scientific American ● Jun. 8, 2020

She oversaw punitive operations along the southern border that included the tear-gassing of hundreds of desperate would-be refugees near the San Ysidro border crossing.

From Slate ● Apr. 9, 2019

State Sen. Maria Chappelle-Nadal, who represents Ferguson and live-tweeted her tear-gassing by police, is one of 10 Democrats outnumbered by 24 Republicans.

From Slate ● Aug. 15, 2014

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