noun
Alternative form of grown-up.
adj
ADJ.
hobby, many
VERB + GROWNUP
acting, believe, like
GROWNUP + NOUN
things
PREP.
into
noun — a fully developed person from maturity onward
adjective — (of animals) fully developed
Now that I'm a grownup, I think otherwise.
When children play, they often make believe they are grownup.
Yanni is a grownup.
Start acting like a grownup.
But for one “Hot Wheels” collector near Washington, DC, he’s turned a childhood passion into a grownup hobby he can share with others.
Ziri is too grownup for that anyways.