noun
first cockcrow; first rooster crow
Refers to the first crowing of a rooster at dawn. Often used in literary or traditional contexts to indicate early morning.
一番鶏が鳴く前に起きて旅支度を始めた。
I woke up before the first cockcrow and started preparing for the journey.
Compound of 一番 (first) and 鶏 (chicken/rooster). The reading どり is a voiced form of とり (bird) due to rendaku.