coaster vs coast

coaster and coast both are nouns.

Word	Noun	Adjective	Verb	Adverb
coaster	Yes	No	No	No
coast	Yes	No	Yes	No

coaster (noun)	coast (noun)
a covering (plate or mat) that protects the surface of a table (i.e., from the condensation on a cold glass or bottle)	the act of moving smoothly along a surface while remaining in contact with it
someone who coasts	the area within view
a resident of a coastal area	the shore of a sea or ocean
	a slope down which sleds may coast

coaster (verb)	coast (verb)
	move effortlessly; by force of gravity