Used to express surprise or frustration: oh my God; good Lord

three households / the three pairs of head orifices (eye sockets, nostrils, earholes)

A district of Aomori Prefecture, Japan, Asia / A town in Sannohe district, Aomori Prefecture, Japan, Asia

three dimensions, three-dimensional

triangular prism

three years; the third year / (education) the third school year / (figuratively) a long period of time, several years

three years; triennial / three years old

three years of age, three years old

excuse me; may I come in?

(physics) critical Reynolds number