gas

1 of 2

noun

plural gases also gasses
1
: a fluid (such as air) that has neither independent shape nor volume but tends to expand indefinitely
2
a
: a combustible gas or gaseous mixture for fuel or lighting
especially : natural gas
b
: a gaseous product of digestion
also : discomfort from this
c
: a gas or gaseous mixture used to produce anesthesia
d
: a substance that can be used to produce a poisonous, suffocating, or physically irritating atmosphere
3
: empty talk : bombast
His talk about quitting his job was all gas.
4
: gasoline
also : the accelerator pedal of an automotive vehicle
5
: driving force : energy
I was young, and full of gas H. L. Mencken
ran out of gas in the seventh inning
6
slang : something that gives pleasure : delight
the party was a gas
7
baseball, informal : fast and powerfully thrown pitches : smoke sense 8
That's Nate on the mound in the glossy photo in his dad's office, throwing gas in some Little League game. Austin Murphy

gas

2 of 2

verb

gassed; gassing

intransitive verb

1
: to talk idly or garrulously
2
: to give off gas (see gas entry 1 sense 1)
3
: to fill the tank (as of an automobile) with gasoline
usually used with up

transitive verb

1
: to supply with gas or especially gasoline
gas up the car
2
a
: to treat chemically with gas
b
: to poison or otherwise affect adversely with gas
3
slang : to please greatly

Example Sentences

Noun Carbon monoxide is a poisonous gas. We heat our house with gas. Do you have a gas stove or an electric one? The car gets good gas mileage. The car almost ran out of gas. He was driving with one foot on the gas and one foot on the brake. Verb soldiers gassed on the battlefield We stopped to gas the car. See More
Recent Examples on the Web
Noun
The decomposition process releases methane, a harmful greenhouse gas. Jenny Strasburg, WSJ, 28 Nov. 2022 Schorow said another myth about the fire is that it was caused by a mysterious gas that spread through the club. Emily Sweeney, BostonGlobe.com, 27 Nov. 2022 Radon is a cancer-causing radioactive gas that can go undetected because a person can't smell, see or taste it. Arlyssa D. Becenti, The Arizona Republic, 26 Nov. 2022 And a gas pushing a liquid out of the way is something that happens in a lot of other contexts. Jennifer Ouellette, Ars Technica, 24 Nov. 2022 This permafrost holds a huge amount of methane, a greenhouse gas that can create 80 times as much atmospheric warming as carbon dioxide in the short term. Naomi Oreskes, Scientific American, 23 Nov. 2022 About 40 percent of food grown for consumption ends up in a landfill, and once there creates methane, a potent greenhouse gas. cleveland, 19 Nov. 2022 Separately, the United Nations unveiled the Methane Alert and Response System, which will use data from new satellites capable of spotting large leaks of methane, a powerful greenhouse gas. Byscience News Staff, science.org, 17 Nov. 2022 Residents may have been exposed to toxicants including dry-cleaning agent tetrachloroethylene; solvent trichloroethylene; benzene, which is commonly used in plastics, dyes, and detergents; and vinyl chloride, a gas used to make plastics. Jamie Ducharme, Time, 16 Nov. 2022
Verb
But the rest had to gas up their cars and join the long lines snaking on roads toward the borders. Dasha Litvinova, ajc, 27 Sep. 2022 But the rest had to gas up their cars and join the long lines snaking on roads toward the borders. Dasha Litvinova, Chicago Tribune, 27 Sep. 2022 The already expensive trip came with an unexpected cost: The price for a gallon of unleaded at Death Valley’s Furnace Creek gas station, the only place to gas up for miles, was $8.25. Evan Halper, Washington Post, 20 May 2022 Nobody wanted oil in general in spring 2020, when global stay-at-home orders meant nobody needed to gas up and get to the office. Julianne Pepitone, CNN, 12 Mar. 2022 Over the course of an hour, more people used the station as a cut-through to skip a long light than to gas up for $6.99 a gallon. Sam Dean, Los Angeles Times, 9 Mar. 2022 Members of the militia group the Oath Keepers, it was later revealed, had planned to trap members of Congress in a tunnel and to gas them. Molly Jong-fast, Vogue, 6 Jan. 2022 Your therapist can gas on about her divorce to HER therapist. Amy Dickinson, oregonlive, 22 Aug. 2021 Your therapist can gas on about her divorce to HER therapist. Amy Dickinson, Detroit Free Press, 22 Aug. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gas.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

Noun

New Latin, alteration of Latin chaos space, chaos

Verb

derivative of gas entry 1

First Known Use

Noun

1779, in the meaning defined at sense 1

Verb

1849, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of gas was in 1779

Dictionary Entries Near gas

Cite this Entry

“Gas.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gas. Accessed 2 Dec. 2022.

Kids Definition

gas 1 of 2

noun

plural gases also gasses
1
: a fluid (as hydrogen or air) that has no fixed shape and tends to expand without limit
2
a
: a gas or mixture of gases used as a fuel or as an anesthetic
b
: a gaseous product of digestion
c
: a fluid substance (as tear gas) that can be used to produce a poisonous or suffocating atmosphere
3
: unimportant talk : bombast
4
5
slang : something appealing or enjoyable
the party was a gas

gas

2 of 2

verb

gassed; gassing
1
: to supply with gas
gas up the car
2
a
: to treat with gas
b
: to poison with gas
3
: to talk idly

Medical Definition

gas 1 of 3

noun

plural gases also gasses
1
: a fluid (as air) that has neither independent shape nor volume but tends to expand indefinitely
2
: a gaseous product of digestion
also : discomfort from this
3
: a gas or gaseous mixture used to produce anesthesia
4
: a substance that can be used to produce a poisonous, asphyxiating, or irritant atmosphere

gas

2 of 3

transitive verb

gassed; gassing
1
: to treat chemically with gas
2
: to poison or otherwise affect adversely with gas

GAS

3 of 3

abbreviation

general adaptation syndrome

More from Merriam-Webster on gas

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