draw in vs hollow out

draw in and hollow out both are verbs.

Word	Noun	Adjective	Verb	Adverb
draw in	No	No	Yes	No
hollow out	No	No	Yes	No

As verbs, hollow out is a hypernym of draw in; that is, hollow out is a word with a broader meaning than draw in:

Other hypernyms of draw in include core out, hollow.

draw in (verb)	hollow out (verb)
direct toward itself or oneself by means of some psychological power or physical attributes	remove the interior of
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