The term 'spread through' can be expressed in a variety of ways. The crossword solutions for this term include 'PERVADE' (7 letters), 'PERMEATE' (8 letters), 'IMBUE' (5 letters), 'PENETRATE' (9 letters), and 'PERMEATED' (9 letters). PERVADE means to spread throughout or to be present everywhere, while PERMEATE means to spread throughout or to PENETRATE deeply. IMBUE means to fill or to inspire, while PENETRATE means to pass into or through. Finally, PERMEATED means to have been penetrated or to have been filled with something. All of these words describe the process of something spreading through an area or object.