The verb diffuse means to cause something to spread in wide area.

Synonyms are disperse, extend, expand, or broadcast.

The word origins from Latin (1520s) diffusus, past participle of diffundere meaning “to pour out or away”. It comes from dis– meaning “apart, in every direction” plus fundere meaning “to pour”.

The Internet is a powerful means of diffusing knowledge.

The fragrant scent of the perfume diffused all over the room.

The news must be diffused to everyone.