咬む[kamu] to bite
鼠咬症[sokoushou] ratbite disease
不正咬合[fuseikougou] malocclusion
咬傷[koushou] a bite (wound)
咬み傷[kamikizu] bite (wound)

咬ます[kamasu] to force something into someone's mouth (i.e. a gag)
咬筋[koukin] masseter muscle
咬痙[koukei] lockjaw
咬創[kousou] biting wound
咬合面[kougoumen] masticating surface

噛合う[kamiau] to gear (engage) with
噛み合せる[kamiawaseru] to clench (teeth)
噛砕く[kamikudaku] to crunch
噛殺す[kamikorosu] to stifle a smile, yawn, etc.
噛熟す[kamikonasu] to chew

噛み切る[kamikiru] to bite off
噛締める[kamishimeru] to chew thoroughly
噛付く[kamitsuku] to bite (at)
噛分ける[kamiwakeru] to taste
噛む[kamu] to bite