grow up
- to progress from childhood to adulthood
Wiktionary
intj
Etymology: Dissimilated from Middle English upgrowen.
- Used to criticize childish behavior, especially that considered unreasonable for one's age.
“You're giggling because I said "butt"? Grow up, seriously.”
“Grow up! The Bible is nothing more than a astrotheological allegory for things like the Sun!”
verb
Etymology: Dissimilated from Middle English upgrowen.
- To mature and become an adult.
“What do you want to be when you grow up?”
“Attila grew up a nomad on the plains of Hungary”
- To start to develop; to flourish.
“Socialism grew up in the industrial cities.”
“A town grew up at the junction of the two rivers.”
- To stop acting as or like a child (often used as an imperative interjection).
“Will you grow up please, and stop making silly faces?”