How do you say "seventy" in Japanese?

In Japanese, "seventy" is 七十 (nanajū). It is a adjective.

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Pronunciation

七十 is written in kanji. Romanised as nanajū, it sounds roughly like "nah-nah-joo" to an English ear.

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Questions about 七十

How do you pronounce 七十?

七十 is romanised as nanajū. Say it roughly like "nah-nah-joo" in English. Each Japanese syllable has even weight, so keep the rhythm steady.

Is 七十 formal or casual?

七十 is a na-adjective or noun-adjective. It is neutral in register and fits naturally in both casual and polite sentences. Add na before a noun, or use desu for a polite predicate.

How is 七十 written in Japanese?

七十 is written using kanji. Kanji characters carry the core meaning; any hiragana or katakana that follow show grammatical endings.

This word is part of the vocabulary taught in the Japanese language learning game Noun Town, where words are introduced through play rather than memorisation.