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

An employee puts the final touches on Kingda Ka, Six Flags’ 456-foot behemoth that marked the end of the coaster wars between Six Flags and Cedar Fair in 2005. —HubSpot, 1 June 2026

Beyond hiking, visitors can ride a mountain coaster at SkyLand Ranch, explore underground at Forbidden Caverns, or enjoy an upscale evening out at The Appalachian. —Symiah Dorsey, Southern Living, 31 May 2026

The employee nodded and then the video cut to Ferrell getting situated on the 310-foot Millennium Force coaster. —Saleen Martin, USA Today, 29 May 2026

Included in Friday’s event was the announcement that the park will be reintroducing the racing aspect of the American Eagle ride, returning the dual-track coaster to its original side-by-side operation for the first time in nearly a decade during the 50th anniversary celebration. —Joseph States, Chicago Tribune, 29 May 2026

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