Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “gas”

gas

noun uk   /ɡæs/ us  

gas noun (AIR SUBSTANCE)

B2 [C or U] a substance in a form like air that is neither solid nor liquid: Oxygen, hydrogen and nitrogen are all gases. poisonous/inflammable/toxic gas A2 [C or U] a substance in a form like air that is used as a fuel for heating and cooking: Do you prefer cooking with electricity or gas?UK A leak in the gas mains (= pipes) caused a major explosion. a gas-fired power station [U] informal a substance in a form like air used for medical purposes to prevent people feeling pain or being conscious during an operation: I had/was given gas when I got my wisdom teeth out. [U] mainly US for wind noun: Beer gives me gas.

gas noun (LIQUID FUEL)

A2 [U] US for petrol: I'll stop and get some gas - we're running low. a gas tank/pump the gas [S] US the part of a car that you push with your foot to make it go faster: Step on the gas (= drive faster)!

gas noun (ENJOYABLE SITUATION)

[S] mainly US informal a funny or enjoyable situation: Some kids put on a show for the moms and dads, - it was a gas.

gas

verb uk   /ɡæs/ (-ss-) us  

gas verb (POISON)

[T] to kill or injure a person by making them breathe poisonous gas: Hundreds of thousands of soldiers were gassed in the First World War.

gas verb (TALK)

[I] old-fashioned informal to talk for a long time about things that are not important: Susan came round and we sat gassing for hours.
Phrasal verbs
(Definition of gas from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of gas?
Browse related topics

You are looking at an entry to do with Filling and completing, but you might be interested in these topics from the Full and empty topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “gas” in other dictionaries

Word of the Day

look on the bright side

to find good things in a bad situation

Word of the Day

The language of work

by Kate Woodford,
October 15, 2014
Most of us talk about our jobs. We tell our family and friends interesting or funny things that have happened in the workplace (=room where we do our job), we describe – and sometimes complain about – our bosses and colleagues and when we meet someone for the first time, we tell

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More