noro-noro（ノロノロ）
noro-noro describes slow, sluggish, or delayed movement or action.
nya-nya（ニャーニャー）
nya-nya describes the repeated meowing sound made by cats.
neba-neba（ネバネバ）
neba-neba describes a sticky, elastic, and viscous texture that stretches or clings when pulled or touched.
nuru-nuru（ヌルヌル）
nuru-nuru describes a smooth, slippery, and slightly viscous surface quality, often associated with substances like slime, oil, or wet organic materials.
nya（ニャ）
nya describes the vocal sound made by a cat.
niya-niya（ニヤニヤ）
niya-niya describes a sly, smug, or suggestive grin that continues over time.
niko-niko（ニコニコ）
niko-niko describes a state of smiling cheerfully and continuously.