koto-koto（コトコト）
1. Gentle simmering sound
nya（ニャ）
nya describes the vocal sound made by a cat.
peko-peko（ペコペコ）
1. Being extremely hungry
bata-bata（バタバタ）
1. Loud, repeated physical sounds
goso-goso（ゴソゴソ）
goso-goso describes small, quiet, and continuous rustling movements or sounds, often made when someone is searching through objects, shifting items, or moving secretly in a confined space.
ton-ton（トントン）
1. Light tapping or knocking sound
kawaii（カワイイ）
kawaii describes something that is charming, adorable, or visually appealing in a soft, endearing way.
pera-pera（ペラペラ）
1. Speaking fluently or smoothly
pachi-pachi（パチパチ）
pachi-pachi describes short, sharp, repeating popping sounds such as light clapping, small sparks, or gentle crackling.
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.