1.
Overtime is time that you spend doing your job in addition to your normal working hours.
He would work ~, without pay, to finish a job...
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2.
If you say that someone is working ~ to do something, you mean that they are using a lot of energy, effort, or enthusiasm trying to do it. (INFORMAL)
We had to battle very hard and our defence worked ~ to keep us in the game...
PHRASE: V inflects, usu PHR to-inf
3.
Overtime is an additional period of time that is added to the end of a sports match in which the two teams are level, as a way of allowing one of the teams to win. (AM; in BRIT, use extra time )
Denver had won the championship by defeating the Cleveland Browns 23-20 in ~.
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