Definition of tank
(Entry 1 of 2)
1
: a usually large receptacle for holding, transporting, or storing liquids (such as water or fuel)
2
: an enclosed heavily armed and armored combat vehicle that moves on tracks
3
: tank top
5
: a prison cell or enclosure used especially for receiving prisoners
in the tank
or into the tank
: in or into a decline or slump
the sullen student's grades went into the tank
tank
verb
tanked; tanking; tanks
Definition of tank (Entry 2 of 2)
1
: to make no effort to win : lose intentionally
tanked the match
2
: to place, store, or treat in a tank
1
: to lose intentionally : give up in competition
2
: to suffer rapid decline, failure, or collapse
bought a stock that quickly tanked
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Merriam-Webster unabridged
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Time Traveler for tank
The first known use of tank was in 1609
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