さわさわ

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

rustling; softly swaying

Describes a light, gentle rustling sound or movement, such as leaves, grass, or fabric moving in a breeze. Often used with と or as a する verb.

• 風かぜで木この葉はがさわさわと揺ゆれている。

  The leaves are rustling softly in the wind.