Simple Definition of coaster
: a small, flat object on which a glass, cup, or dish is placed to protect the surface of a table
: a ship that sails along a coast or that is used in trade between ports of the same country
Full Definition of coaster
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
Examples of coaster
Set the glass on a coaster.
First Known Use of coaster
COASTER Defined for Kids
Definition of coaster
1 : a ship that sails or trades along a coast
2 : a small mat on which a glass is placed to protect the surface of a table
Seen and Heard
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