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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:

Police and Prime Minister Narendra Modi's government have not commented on the use of sticks and tear gas against protesters.

From BBC Jul. 21, 2026

"We don't want tear gas and running battles in the streets. We are too old for that," one of the parents told journalists in Nairobi.

From BBC Jun. 25, 2026

Police have used tear gas to block demonstrators from swarming government buildings in La Paz, where protest blockades have depleted food supplies and pushed prices up.

From Barron's May 21, 2026

Collins said that after he was shot, agents began deploying tear gas, which further irritated his throat and eyes.

From Los Angeles Times May 5, 2026

He needed Harrison to be in a good mood so he could ask him about tear gas.

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

This prompted police to fire tear-gas cannisters to try and stop the procession, which affected traffic.

From BBC Aug. 1, 2024

News outlets around the world converged on Waco as the raid turned into a weeks-long standoff that ended on April 19, 1993, when federal agents launched a tear-gas attack to force out the Branch Davidians.

From Washington Post Apr. 19, 2023

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

Lindsey said on video, “They tear-gassed this area so I’m sneezing,” according to court records.

From Los Angeles Times Aug. 8, 2024

During the 2019 pro-democracy protests in Hong Kong, Mr Lai would join the tear-gassed crowds and listen to protesters before returning to the newsroom to direct coverage.

From BBC Dec. 18, 2023

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 Sterling, Bruce

“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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