Englishfor English speakers
compulsory
Adjective
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When something is compulsory, it is required and has to be followed.
In most countries, it is compulsory to vote during elections and failing to do so is a crime.
overtime
Noun
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An overtime is an extra period of time that is played when two teams end regulation (the normal number of periods) tied.
With Boston and Miami tied at 86, we're going into overtime!
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In business, overtime is the time a person is paid to work that is beyond what they normally work.
The boss paid Jerry overtime to work a night shift at the warehouse