(transitive) to bite / (transitive) to gnaw / (transitive) to eat someone, nag at, to bother / (reflexive) to bite oneself / (reflexive) to bite one another / (reflexive, colloquial) to worry (to be troubled; to give way to mental anxiety or doubt) / (reflexive, colloquial) to feud / (reflexive) to not match, to not fit together

(intransitive, colloquial, idiomatic) to bite the dust (to be dead)

(intransitive, colloquial, idiomatic) to bite the dust (to be dead)