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

The first-of-its-kind Tecuani Beast coaster will reach a top speed of 65 mph as riders navigate six inversions and 13 airtime moments over a 3,900-foot-long track. —Brady MacDonald, Oc Register, 23 Dec. 2025

The coasters are available in eight colors, including amber, clear, and clear green. —Gabriela Izquierdo, Southern Living, 23 Dec. 2025

This will be the park’s sixth coaster, and its first new roller coaster since 2019. —Megan Dubois, USA Today, 20 Dec. 2025

The coaster will run alongside the professional motorsport circuit, Qiddiya Speed Park. —Carly Caramanna, Travel + Leisure, 19 Dec. 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