weed

nouns

any plant that crowds out cultivated plants
is derived from
is a type of (narrower)
green plant having a vascular system: ferns, gymnosperms, angiosperms
a black band worn by a man (on the arm or hat) as a sign of mourning

verbs

clear of weeds
"weed the garden"
is derived from
is derived from
is a type of (narrower)
remove something concrete, as by lifting, pushing, or taking off, or remove something abstract
"remove a threat"; "remove a wrapper"; "Remove the dirty dishes from the table"; "take the gun from your pocket"; "This machine withdraws heat from the environment"