How do you say "knife" in Japanese?

In Japanese, "knife" is ナイフ (naifu). It is a noun pronounced "nah-ee-foo".

Listen to the pronunciation:

Illustration of knife from Noun Town

Pronunciation

ナイフ is written in katakana. Romanised as naifu, it sounds roughly like "nah-ee-foo" to an English ear.

Example sentence

ナイフはどこにありますか?

Naifu wa doko ni arimasu ka?

Where is the knife?

Usage notes

Naifu (ナイフ) is the Japanese word for knife. This noun appears in everyday contexts across homes, offices, schools, and public spaces.

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Questions about ナイフ

How do you pronounce ナイフ?

ナイフ is romanised as naifu. Say it roughly like "nah-ee-foo" in English. Each Japanese syllable has even weight, so keep the rhythm steady.

Is ナイフ formal or casual?

ナイフ is a neutral, everyday word that works in both casual and polite speech. The level of formality comes from the sentence structure around it, not from the word itself.

How is ナイフ written in Japanese?

ナイフ is written using katakana. Katakana is typically used for words of foreign origin or to give emphasis.

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.