sport (adjective) 1. Suitable for use in athletic activities or for casual or informal wear. sport (noun) 1. Any athletic activity that uses physical skills, often competitive. 2. A person who exhibits either good or bad sportsmanship. 3. Somebody who behaves or reacts in an admirable manner, a good sport. 4. A toy; a plaything; an object of mockery. 5. Gaming for money as in racing, hunting, fishing. 6. (biology, botany, zoology) A plant or an animal, or part of a plant or animal, which has some peculiarity not usually seen in the species; an abnormal variety or growth. The term encompasses both mutants and organisms with non-genetic developmental abnormalities such as birth defects. 7. (slang) A sportsman; a gambler, one who consorts with less than reputable people, including prostitutes. 8. (usually singular) A friend or acquaintance (chiefly used when speaking to the friend in question). sport (verb) 1. To amuse oneself, to play. 2. To mock or tease, treat lightly, toy with. 3. To display (something) with pride, to have (something) as an often unique feature. 4. To bear a mark or wound with embarrassment. http://en.wiktionary.org/wiki/sport