兄弟
きょうだい · kyoudai · JLPT N5 · noun
sibling
👦 兄弟 = older brother (兄) + younger brother (弟)
Literally older brother plus younger brother, yet the pair covers all siblings, sisters included. Read kyoudai with on-readings: kyou (兄) + dai (弟). Used for your own siblings; someone else's are ご兄弟 (gokyoudai).