godan verb (-u), intransitive verb
fly about; flutter about; flit about
Describes many small things (birds, insects, leaves, rumors, etc.) flying or moving around in the air, often in a lively or chaotic manner. Also used figuratively for information or words being exchanged rapidly.
公園ではたくさんの蝶が飛び交っていた。
Many butterflies were fluttering about in the park.
会議では様々な意見が飛び交った。
Various opinions flew back and forth in the meeting.