bank has 18 distinct synonyms spread across 6 of its 18 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
a financial institution that accepts deposits and channels the money into lending activities
“he cashed a check at the bank”
an arrangement of similar objects in a row or in tiers
“he operated a bank of switches”
a supply or stock held in reserve for future use (especially in emergencies)
the funds held by a gambling house or the dealer in some gambling games
“he tried to break the bank at Monte Carlo”
a container (usually with a slot in the top) for keeping money at home
“the coin bank was empty”
a building in which the business of banking transacted
“the bank is on the corner of Nassau and Witherspoon”
a flight maneuver; aircraft tips laterally about its longitudinal axis (especially in turning)
“the plane went into a steep bank”
tip laterally
“the pilot had to bank the aircraft”
do business with a bank or keep an account at a bank
“Where do you bank in this town?”
Synonyms, antonyms and the broader and narrower relations for bank come from Princeton University’s WordNet. Full sources and licences.
act as the banker in a game or in gambling
cover with ashes so to control the rate of burning
“bank a fire”