adverb, adverb taking the 'to' particle
soft rustling; light rustling
Describes a gentle, soft rustling sound, typically of leaves, grass, or light fabrics moving in a breeze. Often used with と.
風が吹くと、木の葉がさやさやと音を立てた。
When the wind blew, the leaves rustled softly.
竹林がさやさやと揺れている。
The bamboo grove is swaying with a soft rustle.
Onomatopoeic/mimetic word; the exact origin is uncertain, but it phonetically imitates the soft, light rustling sound it describes.