SAX Meaning of SAX in English 1. n. colloq. 1. a saxophone. 2 a saxophone-player. Derivatives: saxist n. Etymology: abbr. 2. n. (also zax) a slater's chopper, with a point for making nail-holes. Etymology: OE seax knife f. Gmc Oxford English vocab. Оксфордский английский словарь. 2012