stag

An adult male deer, especially a red deer and especially one in high adulthood versus a young adult.countable

• The city recently carried out a deer census, determining there are 313 stags (males), 798 does (females) and 214 fawns (babies) in Nara Park.

A young horse (colt or filly).Scotlandcountable

A male turkey: a turkey-cock.UKcountableuncountable

A romping girl; a tomboy.broadlycountableobsolete

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

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

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

An unmarried man; a bachelor; a man not accompanying a woman at a social event.attributivecountableusually

• a stag dance; a stag party; a stag bar

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.countable

• The stag will be held in the hotel's ballroom.

A man who allows his wife to have sex with other men.colloquialcountableuncountable

• The stag gets a thrill from watching his vixen have sex with another man.

To act as a "stag", an irregular dealer in stocks.UKintransitive

To watch; to dog, or keep track of.transitive

Of a man, attending a formal social function without a date.not-comparable

• My brother went stag to prom because he couldn't find a date.