patan
A clean, light closing sound — shutting a book, a laptop lid closing, or a small door clicking shut. Neat and final.
💡Closing a book after finishing it — 'She closed the book patan.'
本をぱたんと閉じた。
I closed the book with a patan.
She finished reading and closed the book ___ with satisfaction.
読み終えて、満足げに本を○○と閉じた。