Answer:
A weed is "A wild plant growing where it is not wanted and in competition with cultivated plants."
Step-by-step explanation:
Mulch; Mulch benefits your other plants with cool soil and keeping it moist, all while killing the weeds by depriving them of sunlight.
Weeding; Pull weeds out after it rains is one of the best ways to get rid of them yourself. Dig the roots out and yank them out, but make sure you pull the roots out too or else you'll have to do it all again.
Watering; You can water the plants you want to grow while leaving the rest to shrivel up from lack of water and die, making them go away!