rounder

American  

[roun-der] / ˈraʊn dər /

noun

1. a person or thing that rounds something.

2. a person who makes a round.

3. Slang. a petty criminal or drunken ne’er-do-well.

4. (initial capital letter) a Methodist minister who travels a circuit among congregations.

5. (used with a singular verb) rounders, a game somewhat resembling baseball, played in England.

6. Informal. a boxing match of a specified number of rounds (used in combination).

   a 15-rounder.

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rounder British  

/ ˈraʊndə /

noun

1. a run round all four bases after one hit in rounders

2. a tool or machine for rounding edges or surfaces

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Etymology

Origin of rounder

First recorded in 1615–25; round ¹ + -er ¹

Example Sentences

The result is a broth that feels fuller, rounder and more cohesive.

From Salon • Apr. 16, 2026

With wide eyes, small noses and bigger, rounder heads, a brachy dog’s face “is far more human than, say, a Labrador’s,” said Packer.

From The Wall Street Journal • Nov. 28, 2025

Your mileage may vary, but know that the best gingerbread cookie in Disneyland is actually inside the park at the Harbor Galley, where the cookies are smaller and rounder but also spicier and chewier.

From Los Angeles Times • Nov. 19, 2025

Humans, by contrast, possess rounder heads and much flatter faces.

From Science Daily • Oct. 29, 2025

He looks a little like Roger, except his face is rounder and he has darker hair.

From "A Mango-Shaped Space" by Wendy Mass