proofread vs ensure

proofread and ensure both are verbs.

Word	Noun	Adjective	Verb	Adverb
proofread	No	No	Yes	No
ensure	No	No	Yes	No

As verbs, ensure is a hypernym of proofread; that is, ensure is a word with a broader meaning than proofread:

Other hypernyms of proofread include ascertain, assure, check, control, insure, see, see to it.

proofread (verb)	ensure (verb)
read for errors	be careful or certain to do something; make certain of something
	make certain of