C2 [ C ] any wild plant that grows in an unwanted place, especially in a garden or field where it prevents the cultivated plants from growing freely杂草；野草

[ U ] slang → cannabis 大麻，大麻制品

[ U ] UK old-fashioned informal → tobacco 烟草，烟叶

[ C ] UK informal disapproving someone who is thin and physically weak or who is weak in character瘦弱的人；懦弱的人

to remove wild plants from a place where they are not wanted除草；为…除杂草