Short for 生理学 (seirigaku, “physiology”). / menstruation; period

love (in both senses of loving a friend or family member and a partner romantically) / very (most) favorite

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) Female third-person singular pronoun; she, her, girlfriend

(literary) they (about women or girls)

teach; to instruct; give a lesson

instruction; teaching; school; lesson, class

Kyūjitai form of 生理学 (physiology)

menstrual pain, menstrual cramps

(literary) they (about women or girls)