Synonyms for Rest (same or very similar meaning)
WordNet sense 1 (a pause for relaxation):
relief, respite, rest period
WordNet sense 2 (euphemisms for death (based on an analogy between lying in a bed and in a tomb)):
quietus, sleep, eternal rest, eternal sleep
WordNet sense 3 (something left after other parts have been taken away):
balance, remainder, residual, residue, residuum
WordNet sense 4 (have a place in relation to something else):
lie
WordNet sense 5 (be inherent or innate in):
repose, reside, reside
WordNet sense 6 (sit, as on a branch):
perch, roost
WordNet sense 7 (rest on or as if on a pillow):
pillow
WordNet sense 8 (freedom from activity (work or strain or responsibility)):
ease, relaxation
WordNet sense 9 (take a short break from one's activities in order to relax):
breathe, catch one's breath, take a breather
WordNet sense 10 (stay the same; remain in a certain state):
remain, stay
From the ODE community, based on WordNet
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