consent vs permit

consent and permit both are nouns.

Word	Noun	Adjective	Verb	Adverb
consent	Yes	No	Yes	No
permit	Yes	No	Yes	No

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

consent (noun)	permit (noun)
permission for something to happen	the act of giving a formal (usually written) authorization
	large game fish; found in waters of the West Indies
	a legal document giving official permission to do something

consent (verb)	permit (verb)
give an affirmative reply to; respond favorably to	consent to, give permission; permit
	allow the presence of or allow (an activity) without opposing or prohibiting
	make it possible through a specific action or lack of action for something to happen