noun

1. Archaic in India, a natural or artificial pool or pond used for water storage
2. any large container for liquid or gas a gasoline tank, a swimming tank
3. 1. tank top
   2. tank suit

4. Etymology: name orig. used for purpose of secrecy during manufacture

   a heavily armored, self-propelled combat vehicle armed with guns and moving on full tractor treads
5. ☆ Slang a jail cell, esp. one for new prisoners charged with misdemeanors

Etymology: tanksense < Gujarati tānkh; other senses < or infl. by Sp & Port tanque, aphetic < estanque, a pool, stoppage of flow < estancar, to stop the flow of < VL *stanticare, to staunch

transitive verb

1. to put, store, or process in a tank
2. Slang to lose (a game, match, etc.) deliberately or due to a lack of effort

intransitive verb

1. to fail or go into a sharp decline
2. to lose, esp. as a result of a lack of effort