N5
ええ、えー
Definition
yes, that is correct, right, um, errr, huh?, grrr, gah, Must I?, good
N4
すうがく
Definition
mathematics, arithmetic
N3
ふと
Definition
fat, fatty, grand, magnificent, excellent
N2
ひにく
Definition
cynicism, sarcasm, irony, satire
N1
しょうもう、しょうこう
Definition
exhaustion, consumption, waste, dissipation