slumber vs kip

slumber and kip both are nouns.

Word	Noun	Adjective	Verb	Adverb
slumber	Yes	No	Yes	No
kip	Yes	No	Yes	No

As verbs, slumber and kip are synonyms defined as:

Other synonyms of slumber include catch some Z's, log Z's, sleep.

slumber (noun)	kip (noun)
a dormant or quiescent state	a gymnastic exercise performed starting from a position with the legs over the upper body and moving to an erect position by arching the back and swinging the legs out and down while forcing the chest upright
a natural and periodic state of rest during which consciousness of the world is suspended	the basic unit of money in Laos
	sleep

slumber (verb)	kip (verb)
be asleep	be asleep