'''Per Diem''' is a [[Latin]] phrase meaning literally, per day.<ref>http://www.ilga.gov/legislation/glossary.asp</ref>
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'''Per Diem''' is a [[Latin]] phrase meaning literally, per day.<ref>http://www.ilga.gov/legislation/glossary.asp</ref> The term is commonly used for business trips usually as a set amount of money given each day to cover expenses incurred.