Weed/wiːd/ Definition 1 of 4Pro Tip 1/3Unwanted Plants Focuses on plants that grow where people do not want them, often in gardens or fields. Our vegetable patch has been taken over by weeds. Pro Tip 2/3Common Misuse Don't confuse with garden plants. Weeds are generally unwanted and invasive. We planted roses, but the weeds suffocated them. Pro Tip 3/3Negative Connotations Carries negative connotations, often symbolizing neglect or lack of care. The abandoned lot is full of weeds.