penetrate vs sink in

penetrate and sink in both are verbs.

Word	Noun	Adjective	Verb	Adverb
penetrate	No	No	Yes	No
sink in	No	No	Yes	No

As verbs, penetrate and sink in are synonyms defined as:

penetrate and sink in: become clear or enter one's consciousness or emotions

Other synonyms of penetrate include click, come home, dawn, fall into place, get across, get through.

As verbs, sink in is a hyponym of penetrate; that is, sink in is a word with a more specific, narrower meaning than penetrate:

penetrate (verb)	sink in (verb)
come to understand	become clear or enter one's consciousness or emotions
become clear or enter one's consciousness or emotions	pass through
pass into or through, often by overcoming resistance
insert the penis into the vagina or anus of
spread or diffuse through
make one's way deeper into or through
enter a group or organization in order to spy on the members