N5
ギター
Definition
guitar
N4
こうこう
Definition
senior high school, high school
N3
おうじ
Definition
prince
N2
おしい
Definition
regrettable, disappointing, precious, dear, valuable, too good for, deserving better, almost but not quite
N1
いちぶ
Definition
one part, one portion, one section, some, one copy (e.g. of a document)