noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'
frequent occurrence; outbreak; spate
Used for events, accidents, or problems happening many times or in large numbers. Often appears in news reports.
今年は交通事故が多発している。
There have been many traffic accidents this year.
多
Measures against the frequent natural disasters are urgently needed.