(mathematics, education) An equation or inequality expressed with numbers and operators, such as 3 + 6 < 10.

plural of number sentence

(Britain, informal) A job or task that is easy to do; a position that requires little work or is undemanding; a sinecure.

(informal) It is one's time to die, or to undergo some other difficult experience.

(mathematics) In pancake sorting, the minimum number of flips required for a given number of pancakes.

(fluid mechanics, meteorology) A dimensionless number expressing the ratio of buoyancy to flow shear in a fluid flow.

(soccer) An unconventional lone striker or centre-forward who drops deep into midfield.

A numerical address for postal correspondence, managed by a company or organisation on behalf of the addressee, and used e.g. for convenience, if one does not have a suitable physical address for receiving mail, or to avoid giving one's real address (e.g. in a newspaper advertisement).

(theater) A showstopping song that occurs late in the second act of a two-act musical, often signifying a moment of revelation or change of heart of a lead character.

Having or bearing an odd number.