WordNet sense 1 (cut off and stop):

cut out

WordNet sense 2 (remove by or as if by cutting):

chop off, lop off

WordNet sense 3 (break a small piece off from):

chip, knap, break off

WordNet sense 4 (remove surgically):

amputate

WordNet sense 5 (make a break in):

disrupt, interrupt, break up

WordNet sense 6 (detached by cutting):

severed

WordNet sense 7 (separated into parts or laid open or penetrated with a sharp edge or instrument):

cut