Dictionary / Vocabulary / 一刻
いっこく
a moment; a minute; an instant; stubborn
common word Also written 一克、一剋
事態は急を要するので一刻も待てないと彼は言った。
He said that the matter was urgent, and that there was not a moment to lose.
事態は一刻の猶予も許さない。
There's not a moment to waste.
一刻の猶予も許されなかった。
Not a moment could be lost.