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

Back in 2003, Merz introduced his famous tax return on a beer coaster concept, envisioning a simplified tax system where ordinary households could calculate their due taxes on a piece of paper the size of a beer coaster. — CNBC, 25 Sep. 2026

Six days after Guillen collapsed while exiting X2, Naomi Greer-Wilkinson rode the coaster. — ABC News, 23 Sep. 2026

Some construction walls near Music Plaza have been removed, giving a clearer look at the coaster path, which skirts across the top of the stage. — Dewayne Bevil, The Orlando Sentinel, 23 Sep. 2026

Lastly, fourth place was awarded to Six Flags Qiddiya City’s Colossus ride — a hybrid wooden coaster that also made its debut when the park opened at the end of 2025. — Natalia Senanayake, PEOPLE, 18 Sep. 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