プログレッシブ和英中辞典(第4版)の解説
うし【×丑】
〔十二支の一つ〕the Ox (the second of the twelve signs of the Chinese zodiac)；〔時刻〕the hour of the Ox (2:00 a.m. or the hours between 1:00 a.m. and 3:00 a.m.)；〔方角〕north-northeast
丑の刻参り
a visit to a shrine [temple] in the dead of night to 「pray for a person's death [lay a curse on a person]
丑年
the year of the Ox
丑の日
the day of the Ox；〔土用の〕the hottest day of the summer
丑三つ時
〔真夜中〕 ((in)) the dead of night