Saturate
impregnate, infuse, permeate, pervade, imbue, or soak.
Soak thoroughly when first planted and then soak once a week throughout the growing season
Experiment is the word that defines an investigation in science that is controlled.
what word is silent in thoroughly
Are... You serious? Ok then, soaking means to thoroughly moisten something.
The word that defines comprehend or understand is "grasp."
Yes, a glossary defines a word, usually found in the back of the book.
I would like to take a nice soak.
I'm going to go soak my feet.
Re-energise best defines 'invigorate'.
sATURATE
Soak