ventilate vs freshen

ventilate and freshen both are verbs.

Word	Noun	Adjective	Verb	Adverb
ventilate	No	No	Yes	No
freshen	No	No	Yes	No

As verbs, freshen is a hypernym of ventilate; that is, freshen is a word with a broader meaning than ventilate:

Other hypernyms of ventilate include refresh.

ventilate (verb)	freshen (verb)
expose to cool or cold air so as to cool or freshen	make fresh again
furnish with an opening to allow air to circulate or gas to escape	become or make oneself fresh again
give expression or utterance to	make (to feel) fresh
circulate through and freshen
expose to the circulation of fresh air so as to retard spoilage