Definitions
1.nounAn adult male deer.
2.nounA colt, or filly.
3.noun(by extension) A romping girl; a tomboy.
4.nounAn improperly or late castrated bull or ram – also called a bull seg (see note under ox).
5.nounAn outside irregular dealer in stocks, who is not a member of the exchange.
6.nounOne 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.
7.nounThe Eurasian wren, Troglodytes troglodytes.
8.noun(usually attributive) An unmarried male, a bachelor; a male not accompanying a female at a social event."a stag dance; a stag party"
9.nounA social event for males held in honor of a groom on the eve of his wedding, attended by male friends of the groom, sometimes a fund-raiser."The stag will be held in the hotel's ballroom."
10.nounA stag beetle (family Lucanidae).
11.nounGuard duty.
12.verbTo act as a "stag", an irregular dealer in stocks.
13.verbTo watch; to dog, or keep track of.
14.adverbOf a man, attending a formal social function without a date.