The noun grass has 4 senses (first 1 from tagged texts)
1. (41) grass -- (narrow-leaved green herbage: grown as lawns; used as pasture for grazing animals; cut and dried as hay)
2. Grass, Gunter Grass, Gunter Wilhelm Grass -- (German writer of novels and poetry and plays (born 1927))
3. eatage, forage, pasture, pasturage, grass -- (animal food for browsing or grazing)
4. pot, grass, green goddess, dope, weed, gage, sess, sens, smoke, skunk, locoweed, Mary Jane -- (street names for marijuana)
Overview of verb grass
The verb grass has 6 senses (first 1 from tagged texts)
1. (1) grass -- (shoot down, of birds)
2. grass -- (cover with grass; "The owners decided to grass their property")
3. grass -- (spread out clothes on the grass to let it dry and bleach)
4. grass, grass over -- (cover with grass)
5. grass -- (feed with grass)
6. denounce, tell on, betray, give away, rat, grass, shit, shop, snitch, stag -- (give away information about somebody; "He told on his classmate who had cheated on the exam")