simple past tense and past participle of number close

Not an important attribute about a person, place, or thing.

plural of premium-rate telephone number

(fandom slang, idiomatic) To remove the copyrighted elements from an existing work of fan fiction so that it may be commercially published as original fiction.

plural of Stirling number of the second kind

plural of nothing-up-my-sleeve number

(idiomatic) Some period of time, such as a term of employment or a lifetime, is coming to an end.

A number written in the form a × bᶜ, e.g. 3.75 × 10³ (a being the mantissa, b, the base and c, the exponent).

A mandatory unique alphanumeric code (usually 17 characters long) assigned to each vehicle produced, stamped into the metal on the dashboard on the left-hand side (viewable through the windshield), and on the engine block and at least one other place somewhere on the body of the vehicle.

(idiomatic) Superlative; impossible to beat.