white out vs widen

white out and widen both are verbs.

Word	Noun	Adjective	Verb	Adverb
white out	No	No	Yes	No
widen	No	No	Yes	No

As verbs, widen is a hypernym of white out; that is, widen is a word with a broader meaning than white out:

white out (verb)	widen (verb)
widen the interlinear spacing by inserting leads	become broader or wider or more extensive
cover up with a liquid correction fluid	extend in scope or range or area
	make wider
	make (clothes) larger