The edge of the land where it meets an ocean, sea, gulf, bay, or large lake.

“The rocky coast of Maine has few beaches.”

The side or edge of something.

A region of land; a district or country.

To glide along without adding energy; to allow a vehicle to continue moving forward after disengaging the engine or ceasing to apply motive power.

“When I ran out of gas, fortunately I managed to coast into a nearby gas station.”

To sail along a coast.

To make a minimal effort; to continue to do something in a routine way, without initiative or effort.