Definitions from Wiktionary ( )

▸ noun:  A closed container for liquids or gases.
▸ noun:  An open container or pool for storing water or other liquids.
▸ noun:  A pond, pool, or small lake (either natural or artificial).
▸ noun:  The fuel reservoir of a vehicle.
▸ noun:  The amount held by a container; a tankful.
▸ noun:  An armoured fighting vehicle, armed with a gun designed for direct fire, and moving on caterpillar tracks.
▸ noun:  (Australia, India) A reservoir or dam.
▸ noun:  (botany) A structure of tightly overlapping leaves used by some bromeliads to retain water.
▸ noun:  (colloquial) A very muscular and physically imposing person; somebody who is built like a tank.
▸ noun:  (UK, slang, dated, by extension) A bouncer or doorman.
▸ noun:  (roleplaying games, board games, video games) A unit or character designed primarily around damage absorption and holding the attention of the enemy (as opposed to dealing damage, healing, or other tasks).
▸ noun:  (US, slang) A prison cell, or prison generally.
▸ noun:  (poker, slang) A metaphorical place where a player goes to contemplate a decision; see in the tank.
▸ verb:  To fail or fall (often used in describing the economy or the stock market); to degenerate or decline rapidly; to plummet.
▸ verb:  (video games) To attract the attacks of an enemy target in cooperative team-based combat, so that one's teammates can defeat the enemy in question more efficiently.
▸ verb:  (transitive) To put (fuel, etc.) into a tank.
▸ verb:  To deliberately lose a sports match with the intent of gaining a perceived future competitive advantage.
▸ verb:  (fandom slang) To resist damage; to be attacked without being hurt.
▸ verb:  (originally poker, slang) To contemplate a decision for a long time; to go in the tank.
▸ verb:  To put or keep in a tank.
▸ noun:  A small Indian dry measure, averaging 240 grains in weight.
▸ noun:  A Bombay weight of 72 grains, for pearls.
▸ verb:  (Singapore, informal) To stand; to tolerate.
▸ noun:  (rail transport) Short for tank engine and tank locomotive.
▸ noun:  (clothing) Short for tank top. [An item of casual clothing: a top with no sleeves.]

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