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

Matijevich’s go-to lentils to cook are French green lentils, which are smaller and rounder in size compared to green lentils.

From Salon • Feb. 20, 2026

At last year’s deadline, the highest draft pick traded was a third rounder.

From The Wall Street Journal • Nov. 5, 2025

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

From Science Daily • Oct. 29, 2025

So much so that the Jacksonville Jaguars gave the Cleveland Browns their second-round pick and next year's first rounder to grab him at number two in the draft.

From BBC • Apr. 28, 2025

She’s even shorter and somehow rounder without her high heels.

From "Dumplin'" by Julie Murphy