interest

Short for 宋明理学 (Sō-Min rigaku, “Neo-Confucianism”). / (obsolete) Synonym of 哲学 (tetsugaku, “philosophy”) / Clipping of 物理学 (butsurigaku, “physics”).

to hold, to carry something / to have, to possess / to hold up, to maintain

holding, possession / wear, durability

continuative of 持つ

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

deep, profound

a piece of research, a study, investigation