十七(じゅうなな) じゅうなな number seventeen number 1. seventeen The number seventeen. Formed by combining 十(じゅう) (ten) and 七(なな) (seven). Can also be read as じゅうしち. 十七(じゅうなな)時(じ)に会(あ)いましょう。🔊 Let's meet at seventeen o'clock (5 PM). 24-hour time 妹(いもうと)は十七(じゅうなな)歳(さい)になりました。🔊 My younger sister turned seventeen. 十七(じゅうしち)日(にち)は何(なに)をしますか。🔊 What will you do on the seventeenth? Alternative reading じゅうしち 十七(じゅうなな)人(にん)の学生(がくせい)が教室(きょうしつ)にいます。🔊 There are seventeen students in the classroom. この本(ほん)は十七(じゅうなな)年(ねん)前(まえ)に買(か)いました。🔊 I bought this book seventeen years ago. 十七(じゅうなな) is the number seventeen, formed from 十(じゅう) (ten) + 七(なな) (seven, also read しち).Pronunciationじゅうなな: the usual reading in counting and for ages (十七歳(じゅうななさい), 十七人(じゅうななにん))じゅうしち: common in dates and times (十七日(じゅうしちにち), the 17th; 十七時(じゅうしちじ), 17:00)なな is often preferred because しち is easy to mishear as いち (one). basic Added 2026.1.7 21:53 · Revised 2026.10.3 22:58 00500/00951_juunana