nightwatchman
/ˌnaɪtˈwɒtʃmən/noun
(pl. -men /-mən/)
1
- a person whose job is to guard a building at night值夜者, 守夜人; 夜间警卫员。
2
- Cricket an inferior batsman sent in to bat when a wicket falls just before the end of a day's play, to avoid the dismissal of a better one in adverse conditions【板球】（比赛将结束前上场的）二流击球手（避免一流击球手在不利局面下被判罚出局）。