perPronunciation: /pəː/Translate per | into French | into German | into Italian | into Spanish Definition of per preposition 1for each (used with units to express a rate):he charges £2 per square yard 2 archaic by means of:send it per express 3 Heraldry divided by a line in the direction of:per saltirePhrases as per in accordance with:made as per instructions as per usual as usual. Origin:Latin, 'through, by means of'; partly via Old Frenchper in other Oxford dictionaries Definition of per in the US English dictionary