1. cause to become widely known

e.g. spread information
circulate a rumor
broadcast the news

Synonym: circulatecircularizecircularisedistributedisseminatepropagatebroadcastspreaddispersepass around

2. spread or diffuse through

e.g. An atmosphere of distrust has permeated this administration
music penetrated the entire building
His campaign was riddled with accusations and personal attacks

Synonym: permeatepervadepenetrateinterpenetrateimbueriddle

3. move outward

e.g. The soldiers fanned out

Synonym: spreadspread outfan out