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grownup

American  
[grohn-uhp] / ˈgroʊnˌʌp /

noun

  1. a mature, fully grown person; adult.


Etymology

Origin of grownup

First recorded in 1805–15; noun use of verb phrase grow up


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Above all, size your positions like a grownup.

From MarketWatch ● Mar. 26, 2026

Mr. Reiner later recalled that Norman Lear was the first grownup to say he was funny, when he was around 7 or 8.

From The Wall Street Journal ● Dec. 15, 2025

“Maestro” and “May December” may prove a bit too polarizing, which leaves the gentle love story “Past Lives,” the multifaceted crime drama “Anatomy of a Fall,” and the grownup period piece “The Holdovers.”

From Los Angeles Times ● Feb. 12, 2024

For a more grownup affair, consider a caramel apple sangria.

From Washington Times ● Nov. 15, 2023

He didn’t do that awful grownup thing where he looked at her parents or siblings to translate what she had said.

From "The Vanderbeekers of 141st Street" by Karina Yan Glaser

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