告密: inform against sb.; give secret information against sb.: 他做地下工作时, 曾因叛徒告密而被捕。 when he was doing underground work he was arrested because a renegade informed against him.◇告密者 informer
同伙一群在一定的社会基础上结合的人: gang-infl a grouof people who associate regularly on a social basis
