disseminate
Meaning: to spread widely
Usage: The politician disseminated his ideas across the town before the election.
pervasive
Meaning: having the tendency to spread throughout
Usage: Stepping off the plane in Havana, I recognized the pervasive odor of sugar cane fields on fire.
permeate
Meaning: to spread throughout, saturate
Usage: Mrs. Huxtable was annoyed that the wet dog’s odor had permeated the furniture’s upholstery.
propagate
Meaning: to multiply, spread out
Usage: Rumors of Paul McCartney’s demise propagated like wildfire throughout the world.
ubiquitous
Meaning: existing everywhere, widespread
Usage: It seems that everyone in the United States has a television. The technology is ubiquitous here.