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Synonyms

caster

American  
[kas-ter, kah-ster] / ˈkæs tər, ˈkɑ stər /

noun

  1. a person or thing that casts.

  2. a small wheel on a swivel, set under a piece of furniture, a machine, etc., to facilitate moving it.

  3. a bottle or cruet for holding a condiment.

  4. a stand containing a set of such bottles.

  5. a metal container for sugar, pepper, etc., having a perforated top to permit sprinkling; dredger; muffineer.

  6. Automotive. the angle that the kingpin makes with the vertical. Automobiles are usually designed with the upper end of the kingpin inclined rearward positive caster for improved directional stability.

verb (used without object)

  1. (of a wheel) to swivel freely in a horizontal plane.

caster British  
/ ˈkɑːstə /

noun

  1. a person or thing that casts

  2. Also: castor.  a bottle with a perforated top for sprinkling sugar, etc, or a stand containing such bottles

  3. Also: castor.  a small wheel mounted on a swivel so that the wheel tends to turn into its plane of rotation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of caster

Middle English word dating back to 1300–50; see origin at cast, -er 1

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.

Two-time Olympic women's 800m champion Caster Semenya's DSD means she has male XY chromosomes.

From BBC • Mar. 26, 2026

Written by Ruby Caster and directed by Emma Westenberg, “Bleeding Love” drifts and lurches for a wearying 102 minutes.

From New York Times • Feb. 14, 2024

JSerra 9, Dana Hills 0: Kealani Caster hit a home run, Mia Krueger had three hits and Eva Hurtado struck out 11 to lead JSerra.

From Los Angeles Times • Mar. 7, 2023

South Africa just missed out on the medals, with two-time Olympic 800-meter champion Caster Semenya running the anchor leg to place fourth.

From Seattle Times • Feb. 18, 2023

Goodness knows what outcrops Messrs. Caster and Mendes had looked at, because in fact many of the rock formations on both sides of the Atlantic are the same–not just very similar but the same.

From "A Short History of Nearly Everything" by Bill Bryson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.