N5
きいろい
Definition
yellow, high-pitched (voice), shrill
N4
すうがく
Definition
mathematics, arithmetic
N3
すう
Definition
several, a number of, number, numeral, figure, destiny, fate, law
N2
すくなくとも
N1
ぎょうむ
Definition
business, affairs, duties, work, procedure, task, action, function, (business) operations, operational