WordNet sense 1 (a rope that is used by a hangman to execute persons who have been condemned to death by hanging):

hemp, hangman's rope, hangman's halter, hempen necktie

WordNet sense 2 (rope or canvas headgear for a horse, with a rope for leading):

hackamore

WordNet sense 3 (either of the rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight):

balancer, haltere

WordNet sense 4 (prevent the progress or free movement of):

cramp, hamper, strangle