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

Hollywood Drift is a relatively quiet coaster, at least when no one is on it. — Todd Martens, Los Angeles Times, 24 July 2026

Beyond the coasters, Cedar Point evokes an old-time Americana spirit as the second-oldest amusement park in the country (the oldest being the delightful Lake Compounce in Bristol, Connecticut). — Zachary Laks, Travel + Leisure, 22 July 2026

On the steel side, Phantom’s Revenge turns 25, still dropping riders 232 feet into the ravine at speeds around 85 mph and earning national attention as a USA TODAY 10Best‑nominated coaster. — Gabby Sartori, USA Today, 22 July 2026

Some neighbors have been complaining about the coaster’s noise during testing, which seems ironic given that Universal itself has a multi-billion dollar production interest in preserving quiet on its adjacent studio lot. — Robert Niles, Oc Register, 21 July 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