Verbs

(v)lock in, lock away, lock, put away, shut up, shut away, lock upplace in a place where something cannot be removed or someone cannot escape“The parents locked her daughter up for the weekend”, “She locked her jewels in the safe”
(v)imprison, incarcerate, lag, immure, put behind bars, jail, jug, gaol, put away, remandlock up or confine, in or as in a jail“The suspects were imprisoned without trial”, “the murderer was incarcerated for the rest of his life”
(v)put away, put asidestop using“the children were told to put away their toys”, “the students put away their notebooks”
(v)put away, put to sleepkill gently, as with an injection“the cat was very ill and we had to put it to sleep”
(v)tuck in, tuck away, put awayeat up; usually refers to a considerable quantity of food“My son tucked in a whole pizza”
(v)put away, put asideturn away from and put aside, perhaps temporarily“it's time for you to put away childish things”