older sister

(woman) + (small city/dagger radical)
★★★☆☆
8 strokes

Onyomi

SHI

SHE's my older sister.

Mnemonic

My older sister is a woman with a dagger!! (she's kind of a すけばん!

Kunyomi

おねえさん someone else's older sister- or, if you're a sexist douche, you can use it about any young woman, in the sense of 'hey sweetheart, bring me more tea, chop chop!' (hence the ABU tag) ABU
★★★★☆
あね my older sister
★★★☆☆

Jukugo

お姉ちゃん(おねえちゃん)

hey sweetheart! ★★★☆☆ ABU

a disrespectful way for a guy to yell at a lady he doesn't know. Kind of like, 'Hey sweetheart, go make me some tea!'

姉妹(しまい)

sisters ★★★☆☆
(older sister) + (little sister) = 姉妹 (sisters)