coaster

noun

coast·​er ˈkō-stər 

1

: one that coasts: such as

a

: a person engaged in coastal traffic or commerce

b

: a ship sailing along a coast or engaged in trade between ports of the same country

2

: a resident of a seacoast

3

a

: a tray or decanter stand usually of silver and sometimes on wheels

b

: a shallow container or a plate or mat to protect a surface

4

a

: a small vehicle (such as a sled or wagon) used in coasting

b

: roller coaster

Examples of coaster in a Sentence

Set the glass on a coaster.

Recent Examples on the Web

Coming up is Siren’s Curse, a tilt coaster under construction at Cedar Point in Ohio. —Dewayne Bevil, The Orlando Sentinel, 15 May 2025

Universal’s Stardust Racers is the frontrunner for best new coaster of 2025 The Stardust Racers dueling coaster puts riders aboard a comet and sends them rocketing through the stars on twin tracks named Photon and Pulsar. —Brady MacDonald, Oc Register, 13 May 2025

To prolong the quality of the tabletop, consider adding coasters like this bamboo set and place mats to prevent stains. —Clint Davis, People.com, 10 May 2025

One of the malls in Dubai is even home to a highly successful coaster with the world’s fastest vertical launch which costs $17.70 for a single ride. —Caroline Reid, Forbes.com, 5 May 2025

Word History

First Known Use

1574, in the meaning defined at sense 1

Phrases Containing coaster

• coaster brake
• coaster wagon
• roller coaster

Rhymes for coaster

• poster
• roaster
• toaster
• paternoster

Kids Definition

coaster

noun

coast·​er ˈkō-stər 

1

: one that coasts

especially : a ship engaged in coastal trade

2

a

: a round tray usually of silver and sometimes on wheels

b

: a shallow container or a plate or a mat to protect a surface

3

: a small vehicle (as a sled or wagon) for coasting