What does 警告 mean?
警告 is a Japanese noun meaning “warning” in English. It can also be translated as “keikoku (penalty in judo)” depending on context. It is written as 警告 in kanji, けいこく in hiragana, and keikoku in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
彼は私の警告に全く注意を払わなかった。
He paid no attention to my warning.