This is the 9308th most frequent Swedish word.
florerar
"Florera" means "to flourish," "to circulate," or "to be widespread" in English.
In this sentence, 'florerar' is used metaphorically to describe the widespread circulation and presence of rumors, akin to how flowers flourish in nature.
Rykten florerar kring vad som hände på festen.
Rumors are circulating around what happened at the party.
Here, 'florerar' comments on the rampant increase or presence of the plague, drawing an analogy to things that grow or spread extensively.
Pestens spridning florerar i staden.
The spread of the plague is flourishing in the city.
In this instance, 'florerar' directly represents natural flourishing or thriving growth, particularly of flowers in the garden during springtime.