"diffuse" in the verb sense
1. diffuse, spread, spread out, fan out
"The soldiers fanned out"
2. permeate, pervade, penetrate, interpenetrate, diffuse, imbue, riddle
spread 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"
3. circulate, circularize, circularise, distribute, disseminate, propagate, broadcast, spread, diffuse, disperse, pass around
cause to become widely known
"circulate a rumor"
"broadcast the news"
"diffuse" in the adjective sense
spread out not concentrated in one place
"a large diffuse organization"
2. soft, diffuse, diffused
of light) transmitted from a broad light source or reflected
"a diffuse historical novel"
Source: WordNet® (An amazing lexical database of English)
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