shampoo

nouns

cleansing agent consisting of soaps or detergents used for washing the hair
is a type of (narrower)
a preparation used in cleaning something
the act of washing your hair with shampoo
is a type of (narrower)
care for the hair: the activity of washing or cutting or curling or arranging the hair

verbs

use shampoo on (hair)
is a type of (narrower)
cleanse (one's body) with soap and water