come to vs attain

come to and attain both are verbs.

Word	Noun	Adjective	Verb	Adverb
come to	No	No	Yes	No
attain	No	No	Yes	No

As verbs, attain is a hypernym of come to; that is, attain is a word with a broader meaning than come to:

Other hypernyms of come to include accomplish, achieve, reach.

come to (verb)	attain (verb)
return to consciousness	reach a point in time, or a certain state or level
cause to experience suddenly	reach a destination, either real or abstract
attain	find unexpectedly
be relevant to	to gain with effort