sleep vs kip

sleep and kip both are nouns.

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

As nouns, kip is a hyponym of sleep; that is, kip is a word with a more specific, narrower meaning than sleep:

Other hyponyms of sleep include beauty sleep.

As verbs, sleep and kip are synonyms defined as:

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

sleep (noun)	kip (noun)
a natural and periodic state of rest during which consciousness of the world is suspended	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
euphemisms for death (based on an analogy between lying in a bed and in a tomb)	the basic unit of money in Laos
a torpid state resembling deep sleep	sleep
a period of time spent sleeping

sleep (verb)	kip (verb)
be asleep	be asleep
be able to accommodate for sleeping