This is the 549th most frequent Hungarian word.
folyó
River.
In this sentence, "folyó" is used as a noun meaning "river."
A Duna Európa egyik legnagyobb folyója.
The Danube is one of Europe's largest rivers.
In this example, "folyó" is part of a verb form, derived from "folyik," meaning "to flow."
A víz gyorsan folyó az eső után.
The water quickly flowed after the rain.
Here, "folyó" functions as an adjective meaning "ongoing."