词语

家贼偷自己家里东西的人。英thief in the family; pilferer working from within;隐藏在内部进行破坏的人。英hidden traitor;

老家贼〈方〉麻雀（鸟名）。

家贼难防家属或内部的人作弊营私难以防范。英thief in the family is difficult to detect; a thief from within is hard to guard against; it is difficult to forestall a thief within the house;