what what is the definition of weed?
Trees covered by the Kudzu weed. noun. Weed is slang for marijuana. An example of weed is someone asking at a party if anyone has any âweedâ when they want to smoke marijuana. The definition of a weed is a plant that grows easily but is not intentionally being grown or may even be harmful to other plants around it. An example of a weed is kudzu, which kills the trees it grows on.