year
noun
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a body of students who graduate togetherclass
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the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sunโa Martian year takes 687 of our daysโ
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a period of time containing 365 daysโI am four years old.โtwelvemonth
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a period of time occupying a regular part of a calendar year that is used for some particular activityโa school yearโ