—>Assent is a noun (person, place, or thing) meaning ‘the act of expressing approval or agreement.’
Examples: His assent was clear when he nodded fervently. Their assent was given with cheers.
—>Assent is also a verb (word that relays an action) meaning to ‘express approval or agreement.’
Examples: He assents by nodding his head. They assented to the idea with cheers.
—>Consent is a noun (person, place, or thing) meaning ‘permission.’
Examples: The doctor asked for my consent for treatment. I did not give consent for my information to be shared.
—>Consent is also a verb (word that relays an action) meaning ‘to give permission.’
Examples: I consented to treatment. The man consents to be searched.
—>While consent and assent in their noun forms can both mean ‘approval,’ consent is used in situations where that approval is necessary while assent is typically related to a more casual environment or one in which approval is not vital. In a legal setting, the difference between the two is that ‘consent’ is legally recognized as something only a person of adult age (the age of consent) can give and ‘assent’ is approval as given by a minor or person otherwise not considered a legal adult.