pika-n（ピカーン）
pika-n describes a sudden flash of light or a sharp moment of realization.
pun-pun（プンプン）
pun-pun describes a state of being clearly angry or irritated, with the emotion visibly expressed through posture, facial expression, or behavior.
para-para（パラパラ）
para-para describes light, scattered drops falling in quick, irregular succession.
potsu-potsu（ポツポツ）
1. Light, sparse raindrops
pusu-pusu（プスプス）
pusu-pusu describes a faint, weak sound of air, heat, or energy escaping, often associated with smoldering, leaking, or something gradually losing strength.
puni（プニ）
puni describes the small, soft deformation that occurs when something is gently pressed or poked.
pyon（ピョン）
pyon describes a light jumping or hopping motion, especially the quick upward movement made by small animals.
poko-n（ポコン）
poko-n describes a light popping or plopping sound made by a small, firm object with gentle force.
piyo-piyo（ピヨピヨ）
piyo-piyo describes the high-pitched chirping sound made by small birds, especially chicks.
poko-poko（ポコポコ）
poko-poko describes a series of small, hollow bubbling or popping sounds produced when air or gas rises repeatedly through liquid, or when a light, hollow object is tapped in a gentle, rhythmic way.