turn in vs kip down

turn in and kip down both are verbs.

Word	Noun	Adjective	Verb	Adverb
turn in	No	No	Yes	No
kip down	No	No	Yes	No

As verbs, turn in and kip down are synonyms defined as:

Other synonyms of turn in include bed, crawl in, go to bed, go to sleep, hit the hay, hit the sack, retire, sack out.

turn in (verb)	kip down (verb)
prepare for sleep	prepare for sleep
carry out (performances)
make an entrance by turning from a road
to surrender someone or something to another