A telephone number dialled by mistake, for example by transposing digits. / A telephone call received from an unfamiliar caller, due to a mistake in the number dialled.

(idiomatic) A numbers game: the use of inappropriate statistics (numbers) to reflect a desired result (usually misleading). / plural of number game: lotteries, numbers games.

(computing) Any computing application that requires large amounts of numerical calculation.

A phone number as a mnemonic whose letters translate into numbers.

plural of 800 number

(mathematics) A mathematician who specializes in number theory

plural of number theorist

plural of cardinal number

A performance rating of diesel fuel corresponding to the percentage of cetane in a mixture with isocetane (or, formerly, methylnaphthalene) that would have the same performance.

plural of 900 number