N5
なぜ、なにゆえ
Definition
why, how
N4
わかれる
Definition
to be divided, to part from, to separate (usu. for people), to bid farewell
N3
つゆ、ばいう
Definition
rainy season (in Japan from early June to mid-July), rain during the rainy season
N2
つとめる
Definition
to work (for), to be employed (at), to serve (in), to serve (as), to act (as), to fill (the position of), to play the role (of), to conduct a religious service
N1
こぼれる
Definition
to spill, to fall out of, to overflow, to peek through, to become visible (although normally not), to escape (of a smile, tear, etc.)