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

Paultons will transform the 2006 Cobra bobsled coaster by Gerstlauer into the Raven that will intertwine with the new Drakon. —Brady MacDonald, Oc Register, 10 Apr. 2026

The coaster’s comeback will include a change in its height requirement. —Dewayne Bevil, The Orlando Sentinel, 8 Apr. 2026

The coaster features seven inversions, and was plagued by complaints for its roughness after its debut. —Joey Nolfi, Entertainment Weekly, 8 Apr. 2026

The property includes a water park, pools, playgrounds and attractions like an alpine coaster. —Tiffani Jackson, Fort Worth Star-Telegram, 6 Apr. 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