adult
//ˈædʌlt//
Noun
adultSingular
adultsPlural
1
A person who is fully grown or developed; someone who has reached the age of maturity (typically 18 years or older).
Children must be accompanied by an adult.
2
A mature animal or plant that has reached full size and reproductive capability.
The butterfly emerges as an adult after the pupal stage.
Adjective
1
Fully grown or developed; having reached maturity.
An adult elephant can weigh up to 6,000 kilograms.
2
Intended for or relating to adults rather than children, especially containing explicit sexual content.
This movie is rated as adult content.