Descriptive:
* The coarse sandpaper quickly smoothed the rough edges of the wood.
* Her coarse hair felt like straw in her hand.
* The fisherman used coarse fishing line to catch the large fish.
Figurative:
* His coarse language offended many people in the room.
* The artist used coarse brushstrokes to create a textured painting.
* The man's coarse manners made him seem uncultured.
Technical:
* The coarse grain of the fabric made it difficult to dye evenly.
* The geologist examined the coarse sediment in the riverbed.
* The chef used coarse salt to season the meat.
Note: "Coarse" can be an adjective or an adverb, depending on its role in the sentence.