Coaster
WordNet
noun
(1) A covering (plate or mat) that protects the surface of a table (i.e., from the condensation on a cold glass or bottle)
(2) Someone who coasts
(3) A resident of a coastal area
WiktionaryText
Noun
- Something that coasts, such as a sled or toboggan.
- A merchant vessel that stays in coastal waters.
- A small piece of material used to protect the surface of a table, upon which one places cups or mugs.
- A small tray on wheels, used to pass something around a table.
- A worthless compact disc, such as one that was burned incorrectly.