Vocabulary consisting only from characters you are able to read
僕
boku
I (used by men with close acquaintances)jlpt4
研ぐ
togu
(1)to sharpen, to hone, to whet, to grind, (2)to wash (rice), (3)to scour, to polish, to burnish godan, verb, vtrans
分離
bunri
separation, partition, detachment, segregation, isolation, decollationsuru