昇吾: a male given name / 将吾: a male given name / 翔吾: a male given name / 彰吾: a male given name / 省悟: a male given name / 正吾: a male given name / 勝吾: a male given name / 昭吾: a male given name

正午: noon / 正語: (Buddhism) right speech, the third part of the Noble Eightfold Path / 小５: grade 5 (of first school)

equality, uniformity

proximal pronoun

equal, uniform

contraband, prohibited goods

a narrow margin (of victory etc.)

very important

betel pepper

this may be "nie" (錵, martensitic crystals embedded in pearlite matrix), from wikipedia article https://en.wikipedia.org/wiki/Masamune#Style ,referring to quenching hot steel.