How do you say "ruler" in Japanese?

In Japanese, "ruler" is 定規 (jōgi). It is a noun.

Listen to the pronunciation:

Illustration of ruler from Noun Town

Pronunciation

定規 is written in kanji. Romanised as jōgi, it sounds roughly like "joh-gee" to an English ear.

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Questions about 定規

How do you pronounce 定規?

定規 is romanised as jōgi. Say it roughly like "joh-gee" in English. Each Japanese syllable has even weight, so keep the rhythm steady.

Is 定規 formal or casual?

定規 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 定規 written in Japanese?

定規 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.