A year, typically used in the phrase 'per annum' meaning for each year or annually.
From Latin 'annus,' meaning year. The Romans used it to mark yearly cycles, taxes, and seasons—it remains one of the most used Latin words in English law and finance.
When you see 'per annum' on a job posting or loan agreement, it means 'per year.' This Latin phrase is so embedded in English business language that most people don't realize they're speaking Latin.
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