Nouns

(n)weedany plant that crowds out cultivated plants
(n)weed, mourning banda black band worn by a man (on the arm or hat) as a sign of mourning
(n)pot, grass, green goddess, dope, weed, gage, sess, sens, smoke, skunk, locoweed, Mary Janestreet names for marijuana

Verbs

(v)weedclear of weeds“weed the garden”