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

Bringing these Georg Jensen leather coasters as a housewarming gift will all but seal your invite to future festivities. —Audrey Lee, Architectural Digest, 8 Oct. 2025

County officials said the 18-year-old had climbed up the coaster to retrieve his phone. —Mike Stunson, Miami Herald, 7 Oct. 2025

The attraction will also feature the tallest vertical coaster loop at 179 feet and the highest Immelmann Inversion, which sends guests upside down at 218 feet in the air. —Colson Thayer, PEOPLE, 30 Sep. 2025

The ride will be found in the park’s new Spanish village, called Rancho de la Tormenta, with the coaster inspired by the Running of the Bulls. —James Hibberd, HollywoodReporter, 29 Sep. 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