coaster

nouns

a resident of a coastal area
coaster
is a type of (narrower)
someone who lives at a particular place for a prolonged period or who was born there
occupant, occupier, resident
someone who coasts
coaster
is derived from
coast
is a type of (narrower)
someone who moves
mover
a covering (plate or mat) that protects the surface of a table (i.e., from the condensation on a cold glass or bottle)
coaster
is a type of (narrower)
a covering that is intend to protect from damage or injury
"they had no protection from the fallout"; "wax provided protection for the floors"
protection, protective cover, protective covering