mass noun
1- time worked in addition to one's normal working hours加班; 加班时间：
fewer opportunities for overtime
更少的加班机会
as modifier an overtime ban.加班禁令。
1.1
- payment for such extra work加班费; 加班酬金。
1.2
- N. Amer. extra time played at the end of a game that is tied at the end of the regulation time〈北美〉（体育比赛的）延长期, 决胜期：
they lost in overtime.
他们在加时赛中输了。
- in addition to normal working hours超时地：
they were working overtime to fulfil a big order
他们加班以完成大批量订货
figurative 〈喻〉his brain was working overtime.
他用脑时间过长。