n. 1 a girl or unmarried woman. 2 (Miss) a the title of an unmarried woman or girl, or of a married woman retaining her maiden name for professional purposes. b the title of a beauty queen (Miss World). 3 usu. derog. or joc. a girl, esp. a schoolgirl, with implications of silliness etc. 4 the title used to address a female schoolteacher, shop assistant, etc. missish adj. (in sense 3).
[ abbr. of MISTRESS ]