noun
plural weeds
[count] :a plant that grows very quickly where it is not wanted and covers or kills more desirable plants
[noncount] informal :marijuana
the weed chiefly Brit informal :cigarettes and other tobacco products
grow like a weed
chiefly US informal :to grow very quickly
verb
weeds; weeded; weeding
[+ obj] :to remove weeds from (an area of land, such as a garden)
weed out
[phrasal verb]
weed (someone or something) out or weed out (someone or something) :to remove (people or things that are not wanted) from a group