From Longman Dictionary of Contemporary Englishgasgas1 /ɡæs/ ●●● S1 W2 noun (plural gases or gasses) 1 [countable, uncountable]HC a substance such as air, which is not solid or liquid, and usually cannot be seen hydrogen gastoxic/poisonous/noxious gases a cloud of toxic gasa gas cylinder/bottle (=for storing gas) → greenhouse gas2 [uncountable]TPG a clear substance like air that is burned for heating or cookinggas cooker/stove/oven Can you light the gas for me? The explosion was caused by a gas leak from the water heater.3 → gas mark 4/5/6 etc4 [uncountable] American EnglishTT (also gasoline) a liquid made from petroleum, used mainly for producing power in the engines of cars, trucks etc SYN petrol British English I probably spend over $200 a month on gas. The mechanic found a hole in the gas tank.5 → the gas6 [uncountable] a clear substance like air that is used for medical reasons, for example to make people feel less pain or make them sleep during an operation an anaesthetic gas → laughing gas7 [uncountable] a type of gas used as a weapon, because it harms or kills people when they breathe it in mustard gas → nerve gas, poison gas, tear gas8 [uncountable] American English informalMID the condition of having a lot of air in your stomach SYN wind British English9 → a gasCOLLOCATIONS – Meanings 1 & 2ADJECTIVES/NOUN + gasnatural gas (=gas used for cooking and heating, taken from under the earth or from under the sea)The main part of natural gas is methane.a poisonous/toxic gasCarbon monoxide is the main poisonous gas in car exhaust.a noxious gas (=a harmful or poisonous gas)A noxious gas was discovered to be leaking from the pipe.a greenhouse gas (=a gas, especially carbon monoxide or methane, that is thought to trap heat above the Earth and cause the Earth's surface to become warmer)We need to reduce greenhouse gas emissions.nerve gas (=a poisonous gas used in war to kill or paralyse people)Troops were exposed to low levels of nerve gas during the conflict.tear gas (=a gas that stings your eyes, used by the police to control crowds)Police using tear gas had clashed with protestors.gas + NOUNa gas cooker/oven/stoveGas cookers are more efficient than electric ones.a gas fire (=an object that burns gas to heat a room)She turned on the gas fire.a gas cylinder (=a large container for gas)One of the gas cylinders exploded.a gas bottle (=a small container for gas)The gas bottles need to be stored in a safe place.a gas leak (=an escape of gas through a hole in something)If you suspect a gas leak, do not strike a match or even turn on an electric light.a gas supply (=a system for supplying gas to someone's house)The engineers had quite a challenge to install the new gas supply.gas reserves (=a supply of gas kept to be used when it is needed)Norway has far greater gas reserves than the UK.a gas pipelineThe Chinese and Russian governments are cooperating in gas pipeline projects.a gas bill (=a bill you have to pay for gas you have used)Household gas bills have increased dramatically.gas productionThe company expanded its gas production facilities.the gas industryThere are plans to nationalize the country's gas industry.
Examples from the Corpusgas• a gas stove• Perhaps when unhappy people die they release an effluvium of depression, like marsh gas.• With the M16, that gas was ported straight into the bolt.• But he was on a weekend break visiting relatives in the town when he sniffed the gas.a gas cylinder/bottle• There are candles and a gas cylinder.• Teesside trains were also stopped when firemen discovered a gas cylinder near the fire.gas cooker/stove/oven• If you have a gas oven, you may use a special lighter wand to spark it off.• For many years I huddled over a calor gas stove in the winter and ate beans on toast.• It is the start of a new generation of gas cookers.• From outside in the passageway the sound of water bubbling and steaming on the old gas cooker could be heard.• A tiny anteroom houses a portable gas stove.• Saturday night I always do the gas oven out.• The gas stove and heaters were yard-sale items, and the total cost of materials came to under $ 15,000.• Leila cooks on a tiny gas stove nestled into the hold of one of the boats.gas tank• Others squeeze their bodies into gas tanks.• Some water must have gotten into the gas tank.• This will also entail moving the gas tanks which feed over 200 point heaters in the station throat.• Find something to eat and fill up the gas tank and see what the day brought.• Then fill up the gas tank.gasgas2 verb (gassed, gassing) 1 [transitive]SCC to poison or kill someone with gas2 [intransitive] British English informalTALK TO somebody to talk for a long time about unimportant or boring things SYN chat They were just gassing away. → gas up→ See Verb table
Examples from the Corpusgas• I was a long time because everyone was gassing in the shop.• You want to gas people, gas them after November fourth.• To get away from some guys in a Camaro who wanted to race, Juan says, the friend gassed the bike.• 5000 civilians were gassed to death by the army.From Longman Business Dictionarygasgas /gæs/ noun (plural gases or gasses) [countable, uncountable] a substance which is not solid or liquid at normal temperatures, and which usually cannot be seenGreenhouse gases are the direct result of pollution.Over 40% of Pakistan’s energy needs are supplied by gas. → natural gasOrigin gas1 1. (1600-1700) Modern Latin Greek khaos “empty space”; → CHAOS2. (1900-2000) gasoline