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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 used tear gas to disperse crowds in Westfield area as they moved towards the headquarters of the national electricity company, Nawec, with some chanting.

From BBC Sep. 9, 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

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

In what is also known as the “Battle of Toledo,” sheriff’s deputies used tear gas and fire hoses against Electric Auto-Lite Company strikers.

From "Fannie Never Flinched" by Mary Cronk Farrell

“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

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

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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