Verbs

(v)diffuse, spread, spread out, fan outmove outward“The soldiers fanned out”
(v)permeate, pervade, penetrate, interpenetrate, diffuse, imbue, riddlespread or diffuse through“An atmosphere of distrust has permeated this administration”, “music penetrated the entire building”, “His campaign was riddled with accusations and personal attacks”
(v)circulate, circularize, circularise, distribute, disseminate, propagate, broadcast, spread, diffuse, disperse, pass aroundcause to become widely known“spread information”, “circulate a rumor”, “broadcast the news”

Adjectives

(s)diffusespread out; not concentrated in one place“a large diffuse organization”
(a)soft, diffuse, diffused(of light) transmitted from a broad light source or reflected
(s)diffuselacking conciseness“a diffuse historical novel”