The expression "spread like wildfire" is commonly used to describe how something, often a rumor or piece of news, quickly and widely disseminates throughout a community or population. There are several synonyms that can be used to convey a similar meaning, such as "circulate rapidly," "go viral," "explode," "proliferate," "propagate," "diffuse," "disseminate," "permeate," and "infiltrate." Each of these words enhances the idea of widespread, fast-paced dissemination, and can be used interchangeably with "spread like wildfire" to describe how something quickly gains traction and spreads rapidly.