#1 break off v. interrupt before its natural or planned end; "We had to cut short our vacation". wn #2 break off v. prevent completion; "stop the project"; "break off the negotiations". wn #3 break off v. break off (a piece from a whole); "Her tooth chipped". wn #4 break off v. break a piece from a whole; "break a branch from a tree". wn #5 break off v. break a small piece off from; "chip the glass"; "chip a tooth". wn