(US) A one-on-one.

(Australia) Phonetic rendition of Australia′s emergency services telephone number, 000.

A three-pointed decorative amulet, of bronze or jade, found throughout Southeast Asia

(Internet slang) Expressing interest, usually with implied sarcasm or disdain.

(informal, dated) Term of address for a man.

(rare) A form of the letter o modified by the addition of a diacritical “tail”: ⟨ǫ⟩, used in Old Norse.

A form of obsessive-compulsive disorder mainly characterised by obsessive thoughts, with few observable compulsions.

plural of Jell-O shot

(mathematics, computing theory) A particular notation which describes the limiting behavior of a function when the argument tends towards a particular value or infinity, usually in terms of simpler functions. Useful in the analysis of algorithms.

A hot breakfast cereal, porridge or pudding made with farina (ground wheat) or semolina; cream of wheat.