fàn​làn HSK7

flood

泛滥 (氾濫) fàn​làn
flood idiom
to overflow, inundate, or flood, especially referring to bodies of water

The river flooded and caused a disaster due to days of heavy rain.

proliferate verb
to spread or proliferate unchecked, usually referring to something negative or undesirable

Fake information is rampant on the internet, and one needs to distinguish carefully.

Frequency

Movie subtitles
1.64 per million appears in 1% of films
Written text
7.51 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT