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

What this means in practice is that the coaster car climbs up a vertical hill before hurtling around 1,230 feet of track culminating in a vertical spire. — Caroline Reid, Forbes.com, 18 Aug. 2026

The event will also feature more than 30 rides and attractions, from coasters to family-friendly rides. — Finch Walker, USA Today, 18 Aug. 2026

Off the slopes, Woolly’s Adventure Summit is a year-round, family-friendly base camp with thrilling activities such as a mountain coaster, zip lining, and tubing. — Sharael Kolberg, Travel + Leisure, 18 Aug. 2026

While the land will open next year, including the new stage show, two restaurants and a retail shop, the coaster will open at an undisclosed later date. — Mackenzie Schmidt, PEOPLE, 16 Aug. 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