An adult female horse.

(UK, derogatory, slang) A foolish woman.

(UK, Ireland, Commonwealth, colloquial) A nightmare; a frustrating or terrible experience.

(planetology) A large, dark plain, which may have the appearance of a sea, such as those on the Moon

(planetology) On Saturn's moon Titan, any of several lakes which are large expanses of what is thought to be liquid hydrocarbons.

Obsolete form of mayor.

Obsolete form of mair.