(zoology) unguligradism

to study / to learn

zoology

teach; to instruct; give a lesson

instruction; teaching; school; lesson, class

a line of text / (mathematics) a row of a matrix / (calligraphy) Abbreviation of 行書 (“semi-cursive script”).

sex, gender / (grammar) gender

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