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

Ride mountain coasters and alpine slides While a calming chair lift is a scenic way to experience the mountains, those who seek more thrills can get their hearts pumping on a mountain coaster or alpine slide in Park City. —AFAR Media, 4 July 2025

Roller coaster riders were stuck at the top of Cedar Point's newest coaster, Siren's Curse, for about an hour and escorted down on Wednesday, June 2, according to Cedar Point. —Natalie Davies, Freep.com, 3 July 2025

United Parks — the former SeaWorld Parks — has been building plenty of new coasters in recent years, too. —Robert Niles, Oc Register, 17 June 2025

Take a whirl on the 180-foot observation wheel for a peek at Mississippi Sound; catch an adrenaline rush on the Rolling Thunder ‘coaster; and round out the afternoon with a foot-long corn dog and cotton candy from the onsite snack shacks. —Betsy Cribb Watson, Southern Living, 7 June 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