peko-peko（ペコペコ）
1. Being extremely hungry
shiku-shiku（シクシク）
shiku-shiku describes a quiet, continuous expression of sadness or pain.
peta-n（ペタン）
peta-n describes a light, flat, and sudden contact or settling motion, often used when something soft or flexible collapses, sits down, or sticks lightly to a surface.
biku-biku（ビクビク）
1. Trembling or twitching slightly due to fear or tension
puru-puru（プルプル）
puru-puru describes a light, continuous trembling or quivering motion.
puka-puka（プカプカ）
puka-puka describes a light, buoyant floating motion, typically used when something drifts on water or floats in the air without sinking or falling.
shiin（シーン）
1. Complete silence or stillness
uru-uru（ウルウル）
uru-uru describes eyes filled with moisture, usually from tears that have not yet fallen.
mago-mago（マゴマゴ）
mago-mago describes a state of mental confusion or hesitation in which someone cannot decide what to do or how to act.
zuki-zuki（ズキズキ）
1. Throbbing or pulsating pain