Englishfor English speakers
graduation
Noun
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Graduation is when a student finishes a course (usually in school) and gets a diploma. This is usually done with a ceremony.
My family was unable to come to my graduation ceremony.
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A graduation is a mark (usually on a container) that is used to measure things.
diploma
Noun
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A diploma is a certificate awarded by an educational institute to show that someone has successfully completed a course of study.