Real Dictionary

rest in American English 1
peace, ease, and refreshment as produced by sleep
noun: the refreshing quiet or repose of sleep

rest in American English 2
to go on being; continue to be; remain (as specified)
what is left after part is taken away; remainder
noun: the part that is left or remains; remainder

rest in American English 3
a support for the butt of a lance, projecting from the side of the breastplate in medieval armor
noun: a support for a lance; lance rest

rest in British English 1
noun: relaxation from exertion or labour

rest in British English 2
noun: something left or remaining; remainder
verb: to continue to be (as specified); remain

rest quantifier uses
quantifier: The rest is used to refer to all the parts of something or all the things in a group that remain or that you have not already mentioned.

rest verb and noun uses
variable noun: If you get some rest or have a rest, you do not do anything active for a time.
verb: If authority, a responsibility, or a decision rests with you, you have that authority or responsibility, or you are the one who will make that decision.
verb: If something such as a theory or someone's success rests on a particular thing, it depends on that thing.
verb: If you rest or if you rest your body, you do not do anything active for a time.