TREWS Meaning of TREWS in English [ tru:z ]■ plural noun chiefly Brit. trousers. ↘close-fitting tartan trousers worn by certain Scottish regiments.OriginC16: from Ir. triús , Sc. Gaelic triubhas (sing.); cf. trousers . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004