(~es, ~ses, ~sing, ~sed)
Frequency: The word is one of the 1500 most common words in English.
Note: The form '~es' is the plural of the noun. The form '~ses' is the third person singular of the verb.
1.
Gas is a substance like air that is neither liquid nor solid and burns easily. It is used as a fuel for cooking and heating.
Coal is actually cheaper than ~...
Shell signed a contract to develop oil and ~ reserves near Archangel.
N-UNCOUNT
2.
A ~ is any substance that is neither liquid nor solid, for example oxygen or hydrogen.
Helium is a very light ~.
...a huge cloud of ~ and dust from the volcanic eruption.
N-VAR
3.
Gas is a poisonous ~ that can be used as a weapon.
...mustard ~...
The problem was that the exhaust ~es contain many toxins.
N-MASS
4.
Gas is a ~ used for medical purposes, for example to make patients feel less pain or go to sleep during an operation. (INFORMAL)
...an anaesthetic ~ used by many dentists.
N-MASS
5.
Gas is the fuel which is used to drive motor vehicles. (AM; in BRIT, use petrol )
...a tank of ~.
...~ stations.
= ~oline
N-UNCOUNT
6.
To ~ a person or animal means to kill them by making them breathe poisonous ~.
Her husband ran a pipe from her car exhaust to the bedroom in an attempt to ~ her.
VERB: V n
7.
see also ~ chamber , ~ mask , greenhouse ~ , laughing ~ , natural ~ , tear ~
8.
If you step on the ~ when you are driving a vehicle, you go faster. (mainly AM INFORMAL; in BRIT, use step on it )
PHRASE: V inflects