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Japanese vocabulary · Beginner
How do you say "warn" in Japanese?
警告する
keikokusu ru
In Japanese, "warn" is 警告する (keikokusu ru).
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Pronunciation
Kei-ko-ku-su-ru, five syllables, 'kei' is a diphthong like the English word 'kay'.
Writing and usage
警告する is written using kanji. It's a verb, and this word is also taught inside the Noun Town language learning game, where it appears in interactive lessons alongside hundreds of other everyday words.
Example sentence
凍った道には注意しておく。
kogotsu ta michi niha chuui shiteoku.
I must warn you about the icy road.
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How to remember 警告する
Keikoku sounds like 'kay, coke, coo' — 'kay, coke's bad for you', a classic warning.
Related words
- whistle 口笛を吹く kuchibue wo fuku
- yawn あくびをする akubiwosuru
- hiccup しゃっくりする shakkurisuru
- blink まばたきをする mabatakiwosuru
- stretch 伸びをする nobi wosuru
- bend 曲げる mage ru
- kneel ひざまずく hizamazuku
- squat しゃがむ shagamu
- compare 比較する hikaku suru
Browse all Japanese words in the glossary.
Questions about 警告する
How do you pronounce 警告する?
Kei-ko-ku-su-ru, five syllables, 'kei' is a diphthong like the English word 'kay'.
Is 警告する formal or casual?
警告する 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 警告する written in Japanese?
警告する is written using kanji. Romanised, it reads as keikokusu ru.
Where can I practice Japanese words for free?
You can play free Japanese minigames in your browser on the Noun Town online games page, with no sign-up needed. Every word in the Japanese glossary also has native audio and an example sentence you can revisit any time.
"Warn" in other languages
Curated by Callan Ratcliffe
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