\Coast"ing\, a.
Sailing along or near a coast, or running between ports along
a coast.
{Coasting trade}, trade carried on by water between
   neighboring ports of the same country, as distinguished
   from foreign trade or trade involving long voyages.
{Coasting vessel}, a vessel employed in coasting; a coaster.

\Coast"ing\, n.
1. A sailing along a coast, or from port to port; a carrying
   on a coasting trade.
2. Sliding down hill; sliding on a sled upon snow or ice.
   [Local, U. S.]