noun
advance notice; omen; premonition
Refers to a sign, warning, or notification given beforehand, whether literal (a formal notice) or figurative (a foreboding sign).
彼は何の前知らせもなく突然訪ねてきた。
He suddenly visited without any advance notice.
その暗い雲は嵐の前知らせだった。
The dark clouds were an omen of the storm.