also: きょうだい
older brother and older sister
Formal or literary term referring collectively to one's older siblings. In everyday speech, お兄さんとお姉さん or 兄と姉 are more common.
He grew up in a household with older siblings.
Taking care of older siblings is tough.
ladies and gentlemen; everyone
Standard kanji form for the formal reading けいし.
Gikun reading; the same kanji can be read as きょうだい, but this is uncommon and may be confused with 兄弟.
Compound of 兄 (older brother) and 姉 (older sister). The reading けいし is the on'yomi of the two characters.