WordNet sense 1 (lock up or confine, in or as in a jail):

immure, imprison, incarcerate, jail, jug, lag, remand, gaol, put behind bars

WordNet sense 2 (throw or cast away):

discard, dispose, fling, toss, discard, cast aside, toss away, toss out, cast out, chuck out, throw out

WordNet sense 3 (stop using):

put aside

WordNet sense 4 (place in a place where something cannot be removed or someone cannot escape):

lock, lock in, lock up, lock away, shut away, shut up

WordNet sense 5 (kill gently, as with an injection):

put to sleep

WordNet sense 6 (eat up; usually refers to a considerable quantity of food):

tuck in, tuck away