gas
noun
plural gases
also gasses
Definition of gas
(Entry 1 of 2)
1
: a fluid (such as air) that has neither independent shape nor volume but tends to expand indefinitely
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.
5
: driving force : energy
I was young, and full of gas— H. L. Mencken ran out of gas in the seventh inning
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
verb
gassed;
gassing
Definition of gas (Entry 2 of 2)
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
1
: to supply with gas or especially gasoline
gas up the car
2a
: to treat chemically with gas
b
: to poison or otherwise affect adversely with gas
3
slang
: to please greatly
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