caster

noun

cast·​er ˈka-stər 

1

: one that casts

especially : a machine that casts type

2

or castor

ˈka-stər 

a

: a usually silver table vessel with a perforated top for sprinkling a seasoning (such as sugar or spice)

b

: a usually revolving metal stand bearing condiment containers (such as cruets, mustard pot, and often shakers) for table use : a cruet stand

3

: any of a set of wheels or rotating balls mounted in a swivel frame and used for the support and movement of furniture, trucks, and portable equipment

4

: the slight usually backward tilt from vertical of the axis of the steering mechanism of an automobile for giving directional stability to the front wheels

Examples of caster in a Sentence

Recent Examples on the Web

Cliff sensors circle the perimeter, and an omnidirectional caster wheel and a side brush sit on the front edge. —PC Magazine, 17 Apr. 2025

Walter is a fan of daybeds and furniture fitted with casters for versatility. —Kathryn Streeter, USA Today, 7 Apr. 2025

Many shoppers even added DIY elements, such as staining it, incorporating trellises for climbing vines, and casters for easy moving. —Miles Walls, Better Homes & Gardens, 23 Mar. 2025

The primary retracting wheels flank the brush roll, with an omnidirectional caster wheel at the front of the underbelly. —PCMAG, 28 Feb. 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing caster

• caster sugar

Rhymes for caster

• aster
• blaster
• castor
• faster
• gaster
• laster
• master
• paster
• pastor
• plaster
• raster
• vaster

Kids Definition

caster

noun

cast·​er ˈkas-tər 

1

: one that casts

2

or castor

ˈkas-tər 

: a small container (as for salt) with a top having small holes

3

: a small wheel that turns freely and is used for the support and movement of furniture