Definition of coasts:
(n) :
The edge of the land where it meets an ocean, sea, gulf, bay, or large lake.
(v) :
(intransitive) To glide along without adding energy; to allow a vehicle to continue moving forward after disengaging the engine or ceasing to apply motive power.
(v) :
(intransitive, nautical) To sail along a coast.
(v) :
(intransitive, figurative) To make a minimal effort; to continue to do something in a routine way, without initiative or effort.
(v) :
(US, Canada, dialect) To slide downhill; to slide on a sled upon snow or ice.
(n) :
(obsolete) The side or edge of something.