coaster
/ˈkəʊstə(r)/noun
1
- a ship used to carry cargo along the coast from port to port（港口间的）货运船。
1.1
- with adj. a person who inhabits a specified coast沿海居民：
a West coaster.
西部沿海居民。
2
- a small tray or mat for a bottle or glass杯托; 瓶托; 杯垫; 瓶垫。
3
- N. Amer. a toboggan〈北美〉雪橇。
3.1
- short for ROLLER COASTER.ROLLER COASTER的简称。