| number | |
| 1. n. An abstract entity used to describe quantity. | |
| Zero, one, -1, 2.5, and pi are all numbers. | |
| 2. n. A numeral: a symbol for a non-negative integer. | |
| The number 8 is usually made with a single stroke. | |
| 3. n. (mathematics) A member of one of several classes: natural numbers, integers, rational numbers, real numbers, complex numbers, quaternions. | |
| The equatione^i\pi+1=0 includes the most important numbers: 1, 0,\pi,i, ande. | |
| 4. n. (Followed by a numeral; used attributively) Indicating the position of something in a list or sequence. Abbreviations: No or No., no or no. (in each case, sometimes written with a superscript "o", lik | |
| Horse number 5 won the race. | |
| 5. n. Quantity. | |
| Any number of people can be reading from a given repository at a time. | |
| 6. n. A sequence of digits and letters used to register people, automobiles, and various other items. | |
| Her passport number is C01X864TN. | |
| 7. n. (informal) A telephone number. | |
| 8. n. (grammar) Of a word or phrase, the state of being singular, dual or plural, shown by inflection. | |
| Adjectives and nouns should agree in gender, number, and case. | |
| 9. n. (now rare, in the plural) Poetic metres; verses, rhymes. | |
| 10. n. A performance; especially, a single song or song and dance routine within a larger show. | |
| For his second number, he sang "The Moon Shines Bright". | |
| 11. n. (informal) A person. | |
| 12. n. (informal) An item of clothing, particularly a stylish one. | |
| 13. n. (slang) A marijuana cigarette, or joint; also, a quantity of marijuana bought form a dealer. | |
| 14. n. (dated) An issue of a periodical publication. | |
| the latest number of a magazine | |
| 15. v. To label (items) with numbers; to assign numbers to (items). | |
| Number the baskets so that we can find them easily. | |
| 16. v. (intransitive) To total or count; to amount to. | |
| I don’t know how many books are in the library, but they must number in the thousands. | |
| 17. adj. comparative form of numb: more numb | |
