enroll vs unionize

enroll and unionize both are verbs.

Word	Noun	Adjective	Verb	Adverb
enroll	No	No	Yes	No
unionize	No	No	Yes	No

As verbs, unionize is a hyponym of enroll; that is, unionize is a word with a more specific, narrower meaning than enroll:

Other hyponyms of enroll include draft, enlist, muster in, unionise, register, matriculate.

enroll (verb)	unionize (verb)
register formally as a participant or member	form or join a union
	recruit for a union or organize into a union