N5
はじめ
Definition
beginning, start, outset, opening, first (in line, etc.), origin, such as ..., not to mention ...
N4
ピアノ、ピヤノ
Definition
piano
N3
とうあん
Definition
examination paper, examination script
N2
てちょう
Definition
notebook, memo pad, (pocket) diary, certificate, identification card
N1
まい
Definition
every (usu. with events, e.g. every weekend), each