ざざっ

1. 1with a rushing sound (of rain, waves, etc.) ; with a whoosh (e.g. when pouring rice) ; with a rustle ; with a soft rattle Translated by Jiyomi
2. 2in a sudden collapse ; with a clatter Translated by Jiyomi
3. 3swarming (e.g. of insects) ; surging Translated by Jiyomi
4. 4nimbly ; with a dash Translated by Jiyomi

Other writings and readings

JMdict entry 2869838. Source and licence.