Noun
A bill brought by a defendant, in an equity or chancery suit, against the plaintiff, respecting the matter in question in that suit.
A bird of the genus Loxia, allied to the finches. Their mandibles are strongly curved and cross each other; the crossbeak.
Source: Webster's dictionaryMark, thinking he heard a Crossbill said, “Much of bird watching is listening for bird song.” Source: Internet