(US, slang) Engaging in activities typically associated with adulthood. / (nonstandard) Adultery.

present participle of adult

Content, such as pornography or violence, that is not generally thought to be appropriate for viewing by children.

(euphemistic) a pornographic film

A person who has achieved the age of majority but whose character and personality are still developing as they gain experience.

plural of adult movie

(euphemistic) An old person. / Used other than figuratively or idiomatically: see older, adult.

A category of music including soft rock, ballads, easy listening, soul, and rhythm and blues.

(UK, law) An adult, such as a parent, guardian, or social worker, whose role is to safeguard the interests of young people detained by the police, and who must be present at such interviews.

An alcoholic beverage.