Definition of grow up
1a : to grow toward or arrive at full stature or physical or mental maturity : to progress from childhood toward adulthood <growing up intellectually> <grew up in the city>; also : to become an adult <She wants to be a doctor when she grows up.>b : to stop thinking or behaving in a childish way <He should grow up and accept his responsibilities.>
2 : to begin to exist and develop as time passes <A number of cities grew up along the river.>
Examples of grow up in a sentence
<everyone has to grow up at some point in their lives>
First Known Use of grow up
Seen and Heard
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