What does 刻 mean?
刻 is a Japanese noun meaning “koku (old two-hour time unit)” in English. It is written as 刻 in kanji, こく in hiragana, and koku in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
車を運転する時はいくら注意してもしすぎることはない。
You cannot be too careful when you drive a car.