(informal) World War II Japanese invasion money.

(informal) a note of Japanese invasion money.

(finance, chiefly banking) A method of banking whereby the bank holds reserves that are only a fraction of its deposit liabilities.

(control theory) Applied to a kind of feedback control, or controller, that switches abruptly between two states. / (baseball) Of a play, very close between being an out and being safe.

Used other than figuratively or idiomatically: see banana, oil. / (dated) Nonsense. / (chemistry) The chemical substance isoamyl acetate.

(law, obsolete) Free bench.

A small American bird (Icterus leucopteryx) which feeds on bananas.

plural of Swiss bank account

(literally) A bank (financial institution) in Switzerland. / Synonym of Swiss bank account

Used other than figuratively or idiomatically: see Swiss, bank account. / (figuratively) Any place considered safe or secure to put things in.