Abbreviation of 女子高生 (joshi kōsei) or abbreviation of 女子高校生 (joshi kōkōsei, “high-school girl”).

JK: high-school girl

to commute, to go back and forth, to ply between, to attend (school)

(chiefly women's speech) first person singular pronoun: I, me

one's sister regardless of age difference / one's lover or sweetheart who is the subject of marriage or is already married / (archaic, said from a female speaker) a close female companion

a placename

(rare) Same as いもうと (imōto) above

a female given name

Same as いもうと (imōto) above

one's own younger sister / the wife of one's younger brother; one's sister-in-law / a younger female / (archaic, said from a male speaker) one's sister regardless of age difference