zii（ジーッ / jii）
zii describes a continuous, quiet, focused state or sound, often written as jii in romaji.
juuu（ジュー）
juuu describes a continuous sizzling sound produced when food cooks steadily on a hot surface.
zuki-zuki（ズキズキ）
1. Throbbing or pulsating pain
zun（ズン）
zun describes a deep, heavy, and impactful sound or sensation, often associated with something large or weighty moving, landing, or resonating.
hiso-hiso（ヒソヒソ）
hiso-hiso describes speaking quietly in a low, secretive voice.
hyun（ヒュン）
hyun describes a sharp, fast motion that cuts through the air in an instant.
bishi（ビシ）
1. A sharp, snapping or striking sound
zun-zun（ズンズン）
zun-zun describes continuous, heavy, and forceful movement or impacts, often produced by someone or something advancing with weight and momentum.
saa（サー）
1. Continuous natural sound
byun（ビュン）
byun describes a very fast, forceful motion that cuts through the air with strong momentum.