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

speciality/specialty; subject of study; subject of expertise; area of interest; profession

a house / one's own home / a home, household / a family

scholarship; learning; knowledge

paleobotany

plant; vegetation

(slang) Alternative form of 大きいお友達

Kyūjitai form of 病理学 (“pathology”).

outside of one's field of expertise