stag

(countable) An adult male deer.

(countable) A colt, or filly.

(by extension, countable, obsolete) A romping girl; a tomboy.

(countable) An improperly or late castrated bull or ram – also called a bull seg (see note under ox).

(countable, finance) An outside irregular dealer in stocks, who is not a member of the exchange.

(countable, finance) One who applies for the allotment of shares in new projects, with a view to sell immediately at a premium, and not to hold the stock.

(countable, usually attributive) An unmarried man; a bachelor; a man not accompanying a woman at a social event.

(countable) A social event for men held in honor of a groom on the eve of his wedding, attended by male friends of the groom; sometimes a fundraiser.

(uncountable, UK, military, slang) Guard duty.

(countable) A stag beetle (family Lucanidae).

(countable) The Eurasian wren, Troglodytes troglodytes.