variety

noun

1. A deviation or difference.
2. A specific variation of something.
3. An animal or plant (or a group of such animals or plants) with characteristics causing it to differ from other animals or plants of the same species; a strain or cultivar.
4. A rank in a taxonomic classification below species and (if present) subspecies, and above form; hence, an organism of that rank.
5. A specific form of a language, neutral to whether that form is an accent, dialect, register, etc., and to its prestige level.
6. A stamp, or set of stamps, which has one or more characteristics (such as colour, paper, etc.) differing from other stamps in the same issue, especially if such differences are intentionally introduced.
7. A collection or number of different things.
8. In universal algebra: an equational class; the class of all algebraic structures of a given signature, satisfying a given set of identities.
9. The total number of distinct states of a system; also, the logarithm to the base 2 of the total number of distinct states of a system.
10. The quality of being varied; diversity.
11. The kind of entertainment given in variety performances or shows; also, the production of, or performance in, variety performances or shows.