"coasts" in the noun sense
1. seashore, coast, seacoast, sea-coast
the shore of a sea or ocean
a slope down which sleds may coast
"when it snowed they made a coast on the golf course"
the area within view
"the coast is clear"
4. slide, glide, coast
the act of moving smoothly along a surface while remaining in contact with it
"his slide didn't stop until the bottom of the hill"
"the children lined up for a coast down the snowy slope"
"coasts" in the verb sense
move effortlessly by force of gravity
Source: WordNet® (An amazing lexical database of English)
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