curl up vs draw in

curl up and draw in both are verbs.

Word	Noun	Adjective	Verb	Adverb
curl up	No	No	Yes	No
draw in	No	No	Yes	No

As verbs, curl up and draw in are synonyms defined as:

Other synonyms of curl up include curl.

curl up (verb)	draw in (verb)
shape one's body into a curl	direct toward itself or oneself by means of some psychological power or physical attributes
	draw in as if by suction
	pull inward or towards a center
	of trains; move into (a station)
	advance or converge on
	shape one's body into a curl