Learn the meaning of stag as a noun, adjective, or verb in different contexts. Stag can refer to a male deer, a male animal, a man without a female companion, or a social gathering for men only. Learn the meaning of stag as an animal, a person or a verb in English. Find out how to use stag in different contexts and languages with examples and translations. There are 22 meanings listed in OED's entry for the noun stag, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence. A stag is another word for a buck, or a male deer. If you spot a family of deer in the woods, the stag is the one with the largest antlers.