LOOPHOLE Meaning of LOOPHOLE in English ■ noun1》 an ambiguity or inadequacy in the law or a set of rules. 2》 an arrow slit in a wall.Derivatives~d adjective OriginC16: from obs. loop 'embrasure' + hole . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004