N5
ネクタイ
Definition
tie, necktie
N4
けしゴム
Definition
eraser, India rubber
N3
ですから
Definition
so, therefore
N2
ていか
Definition
fall, decline, lowering, deterioration, degradation
N1
こんげん、ねもと、こんぽん
Definition
root, source, origin, foundation, base, principle