American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "grownup" in a sentence
"John Edwards today said that after watching his rivals slug it out last night, he's proud to represent what he's calling the grownup wing of the Democratic Party."
"He has to work with a grownup, which is Nancy Pelosi."
"We're missing the so-called grownup, the adult in the Democratic Party, so expect these two to go at each other tonight -- Kitty."