(Britain) A kiln for drying tobacco, malt and especially hops.

plural of oast house

plural of oat grass

Initialism of oral allergy syndrome. / Initialism of original antigenic sin.

(American continent, organisations) Initialism of Organization of American States. / (Canada) Initialism of Old Age Security.

Alternative form of four o'clock

Used in the names of various plants the leaves of which resemble those of the oak.

Alternative letter-case form of OB-GYN

A type of euphemism based on a profanity or blasphemy that has been altered to remove the objectionable characteristics of the original expression; polite expletive.

(poker) A type of bluff in no limit poker, where an individual bets a small amount to suggest that she has a strong hand and would like to be called.