N5
あのう、あの、あのー
Definition
say, well, errr ...
N4
こんど
Definition
now, this time, next time, another time
N3
ぴったり、ぴたり、ぴったし
Definition
tightly, closely, exactly, precisely, suddenly (stopping), perfectly (suited), ideally
N2
ばね、ぜんまい、はつじょう、だんき、バネ
Definition
spring (e.g. coil, leaf), mainspring, power spring
N1
しゅう
Definition
Zhou (dynasty of China), Chou, perimeter, counter for laps or circuits