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English definition of “per”


preposition       strong /pɜːr/ weak /r/
used when talking about prices , rates , etc. to mean the amount for each one: per day/hour/month, etc. Property prices in the area have increased by an average of 20% per year over the last three years . The group posted earnings per share of 55.4p in the second quarter .per head/person Tickets cost $50 per person . per litre /million/ minute
as per sth formal according to something: as per your instructions/letter/request The policy was not terminated as per your request .
(Definition of per preposition from the Cambridge Business English Dictionary © Cambridge University Press)
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