an act or period of watching for signs of activity, danger, or opportunitykept vigil at their ailing son's bedside the entire time he was in the hospital
kept vigil at their ailing son's bedside the entire time he was in the hospital
lookout, surveillance, watch
observance, observation, supervisioninspection, scrutiny
in the 13th century
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。