1weed 
/ˈwi:d/ noun
plural weeds /ˈwi:d/ noun 1 [count] : a plant that grows very quickly where it is not wanted and covers or kills more desirable plants
▪ We pulled weeds from the garden. ▪ an invasive weed — see also milkweed, ragweed, seaweed, tumbleweed 2 [noncount] informal : marijuana
▪ They were smoking weed. 3 the weed chiefly Brit, informal : cigarettes and other tobacco products
▪ She's trying to give up the weed. [=trying to quit smoking]
▪ We pulled weeds from the garden. ▪ an invasive weed — see also milkweed, ragweed, seaweed, tumbleweed
▪ They were smoking weed.
▪ She's trying to give up the weed. [=trying to quit smoking]
grow like a weed
chiefly US, informal : to grow very quickly
▪ Their business is growing like a weed. ▪ Look at you! You're growing like a weed!
▪ Their business is growing like a weed. ▪ Look at you! You're growing like a weed!
