adult · noun C /əˈdʌlt/
adult
A1 a person or animal that has grown to full size and strength
Dictionary example:
Adults pay an admission charge but children get in free.
Learner example:
Dear Jo, The class day is Wednesday for children (8-16[s]) and Tuesday for adults. (Key English Test; A2; Catalan)
adult · adjective always before noun /əˈdʌlt/
adult (FOR ADULTS)
A2 for or relating to adults
Dictionary examples:
adult education
She spent most of her adult life in prison.
Learner example:
[After the wedding,] we go to a restaurant to celebrate. There are two t[y]pes of menu, the adult one, and [the one] for the children. (Preliminary English Test; B1; Spanish)
adult (NOT A CHILD)
C1 having finished growing
Dictionary example:
an adult male rat
Learner example:
Tony Soprano is the bad kid [in] every adult male. (Certificate in Advanced English; C1; Romanian)