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

Knott’s added a new family coaster and super-sized kids swing in 2024 during a seven-month makeover of Camp Snoopy. —Brady MacDonald, Oc Register, 10 Sep. 2025

Mystic Timbers at Kings Island ranked among the top 10 wooden coasters in Amusement Today's Golden Ticket Awards. —Chad Murphy, Cincinnati Enquirer, 10 Sep. 2025

With Michigan's Adventure now closed for the season, Cedar Point is the closest amusement park to enjoy coasters and other attractions. —Sarah Moore, Freep.com, 9 Sep. 2025

Ferrari World Abu Dhabi has Flying Aces which takes the record of having the world's highest coaster loop at a vertiginous 63 meters. —Caroline Reid, Forbes.com, 8 Sep. 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