Gas

/ɡæs/ adj, name, noun, verb, slang

adj, name, noun, verb, slang ·Very common ·Middle school level

Meaning at a glance

  • Primary sense: Matter in an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid, or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly by deposition.
  • Grammar: gas is listed as adj, name, noun, verb, slang.
  • Nearest alternatives: natural gas, fastball, accelerator, accelerator pedal.
  • Useful contrasts: reggie, liquid mediums, liquid mixture.
  • Usage evidence: The reporter covered the gas explosion in Shibuya.

How to use "gas"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "gas" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "gas" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "gas" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "gas" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "gas" is acting as adj, name, noun, verb, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "natural gas" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "gas", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    Matter in an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid, or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly by deposition. physical, uncountable

    "A lot of gas had escaped from the cylinder."

  2. 2
    Gasoline, a light derivative of petroleum used as fuel. Canada, New-Zealand, Philippines, US, uncountable
  3. 3
    plural of Ga form-of, plural
  4. 4
    plural of GA form-of, plural
  5. 5
    Acronym of group A Streptococcus. abbreviation, acronym, alt-of
Show 20 more definitions
  1. 6
    a pedal that controls the throttle valve wordnet
  2. 7
    Matter in an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid, or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly by deposition.; A flammable gaseous hydrocarbon or hydrocarbon mixture used as a fuel, e.g. for cooking, heating, electricity generation or as a fuel in internal combustion engines in vehicles, especially natural gas. physical, uncountable

    "Gas-fired power stations have largely replaced coal-burning ones."

  3. 8
    Ellipsis of gas pedal; accelerator, throttle. abbreviation, alt-of, broadly, ellipsis, uncountable
  4. 9
    Acronym of general academic strand, a strand under the academic track in senior high school. Philippines, abbreviation, acronym, alt-of
  5. 10
    a state of excessive gas in the alimentary canal wordnet
  6. 11
    Matter in an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid, or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly by deposition.; Poison gas. physical, uncountable

    "The artillery fired gas shells into the enemy trenches."

  7. 12
    An internal virtual currency used in Ethereum to pay for certain operations, such as blockchain transactions. uncountable

    "gas fee"

  8. 13
    the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container wordnet
  9. 14
    A chemical element or compound in such a state. countable, physical

    "The atmosphere is made up of a number of different gases."

  10. 15
    Marijuana, typically of high quality. slang, uncountable
  11. 16
    a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines wordnet
  12. 17
    A hob on a gas cooker. countable

    "She turned the gas on, put the potatoes on, then lit the oven."

  13. 18
    a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely wordnet
  14. 19
    Methane or other waste gases trapped in one's belly as a result of the digestive process; flatus. uncountable

    "My tummy hurts so bad – I have gas."

  15. 20
    a fossil fuel in the gaseous state; used for cooking and heating homes wordnet
  16. 21
    The supply of natural gas, as a utility. attributive, countable, often, uncountable
  17. 22
    A humorous or entertaining event, person, or thing. countable, dated, slang, uncountable

    "Two more girls came in, one in bright pink stretch pants and the other in purple. “Man this place is a gas,” said pink."

  18. 23
    Frothy or boastful talk; chatter. countable, slang, uncountable

    "Bang, little boy, stop with the gas / Little T, man he chats up his ass"

  19. 24
    A fastball. countable, uncountable

    "The closer threw him nothing but gas."

  20. 25
    Arterial or venous blood gas. colloquial, countable, uncountable
Verb
  1. 1
    To attack or kill with poison gas. transitive

    "The Nazis gassed millions of Jews during the Holocaust."

  2. 2
    To increase the fuel flow to a vehicle's engine in order to accelerate it. US

    "The cops are coming. Gas it!"

  3. 3
    show off wordnet
  4. 4
    To use poison gas in (a volume or area) to attack or kill someone or something. transitive

    ""He's been waiting to jump my brain-bones since I left R&E. I could feel him hammering on the door." She trotted to the nearest wall and knocked on it for emphasis. "But whatever it is that makes us remember the good old days, it also makes us impossible to possess now. That's why Willie and I both woke up, and why Noè never got taken out by Mukami. So all I had to do was open my mind up to the guy, invite him in, then... gas the foyer, as it were.""

  5. 5
    To fill (a vehicle's fuel tank) with fuel. US

    "Between 0945 and 1020 six definite explosions were reported in the hangar. Explosions at 0945 and 1006 were described as minor while those at 1002, 1003 and 1005 were classed as major explosions and the explosion at 1020 was described as a heavy explosion but less severe than some previous ones. The cause of these explosions was not reported and can only be estimated from the damage sustained by the ship and the known condition of loading. Each of the six torpedo planes spotted in the hangar was armed with one Mark 13, torpex-loaded torpedo and was fully gassed, including auxiliary wing tanks. Explosions in the hangar therefore might have been either detonations of torpedoes or gasoline vapor explosions."

Show 6 more definitions
  1. 6
    attack with gas; subject to gas fumes wordnet
  2. 7
    To talk in a boastful or vapid way; to chatter. intransitive, slang

    "[…] (it was the town's humour to be always gassing of phantom investors who were likely to come any moment and pay a thousand prices for everything) — “[…] Them rich fellers, they don't make no bad breaks with their money. […]”"

  3. 8
    To impose upon by talking boastfully. slang, transitive

    "I went shop and the boss man said "Don't pay me it's fine" and I said ...(whaaat): "You ain't gotta gas, I'm gas fam" ( don't gas me), "You ain't gotta gas, I'm gas fam"."

  4. 9
    To emit gas. intransitive

    "The battery cell was gassing."

  5. 10
    To impregnate with gas. transitive

    "to gas lime with chlorine in the manufacture of bleaching powder"

  6. 11
    To singe, as in a gas flame, so as to remove loose fibers. transitive

    "to gas thread"

Adjective
  1. 1
    Of high quality. slang, uncountable

    "This food is gas."

  2. 2
    Comical, zany; fun, amusing. slang

    "Mary's new boyfriend is a gas man."

Proper Noun
  1. 1
    A commune in Eure-et-Loir, France.
  2. 2
    A city in Kansas.

Synonyms

All synonyms
natural gasfastballacceleratoraccelerator pedalacetyleneadvance

Antonyms

reggieliquid mediumsliquid mixtureliquid substance

Example

"The reporter covered the gas explosion in Shibuya."

Common questions

What does "gas" mean?

Matter in an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid, or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly by deposition.

What is a synonym for "gas"?

Common synonyms include: natural gas, fastball, accelerator, accelerator pedal, acetylene, advance.

How do you use "gas" in a sentence?

The reporter covered the gas explosion in Shibuya.

How do you pronounce "gas"?

Pronounced /ɡæs/.

Etymology

Etymology 1

Borrowed from Dutch gas, coined by chemist Jan Baptist van Helmont in Ortus Medicinae. Derived from Ancient Greek χάος (kháos, “chasm, void, empty space”); perhaps also inspired by geest (“breath, vapour, spirit”). Doublet of chaos. First attested in 1648.

Etymology 2

Clipping of gasoline. Slang forms popularized on TikTok by Gen Z.

Etymology 3

Compare the slang usage of "a gas", above.

More for "gas"