Final answer:
The word 'compulsory' means required or forced. It is used to describe something that must be done or undertaken, often as a rule or obligation.
Step-by-step explanation:
The word compulsory means required or forced. It is used to describe something that must be done or undertaken, often as a rule or obligation. For example, in school, there are compulsory classes that all students must take, such as math or English.
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