十七(じゅうなな)

じゅうなな
number
seventeen
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/しち) (seven).

READINGS:

  • じゅうなな: common in casual counting
  • じゅうしち: formal contexts, dates

COMMON USES BY READING:

  • Age: 十七(じゅうなな)歳(さい) (common)
  • Date: 十七(じゅうしち)日(にち) (the 17th)
  • Time: 十七(じゅうしち)時(じ) (17:00/5 PM)
  • Counting: 十七(じゅうなな)人(にん) (17 people)

WHY TWO READINGS:
しち sounds similar to 一(いち) (one) and 四(し) (four), so なな is often preferred to avoid confusion, especially in casual speech.

basic
Added 2026.1.7 21:53 · Revised 2026.2.21 10:10
00500/00951_juunana