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View synonyms for
per
1[ pur; unstressed per ]
preposition
- for each; for every:
Membership costs ten dollars per year. This cloth is two dollars per yard.
- by means of; by; through:
I am sending the recipe per messenger.
I delivered the box per your instructions.
He managed to monopolize the meeting, per usual.
adverb
- Informal. each; for each one:
The charge for window-washing was five dollars per.
per-
2- a prefix meaning “through,†“thoroughly,†“utterly,†“veryâ€: pervert; pervade; perfect.
- Chemistry. a prefix used in the names of inorganic acids and their salts that possess the maximum amount of the element specified in the base word: percarbonic (H 2 C 2 O 5 ), permanganic (HMnO 4 ), persulfuric (H 2 S 2 O 8 ), acids; potassium permanganate (KMnO 4 ); potassium persulfate (K 2 S 2 O 8 ).
per.
3abbreviation for
- percentile.
- period.
- person.
Per.
4abbreviation for
- Persia.
- Persian.
per
1/ pÉ™; pÉœË /
determiner
- for every
three pence per pound
preposition
- (esp in some Latin phrases) by; through
- as peraccording to
as per specifications
- as per usual informal.as usual
PER
2abbreviation for
- Professional Employment Register
per-
3prefix
- through
pervade
- throughout
perennial
- away, beyond
perfidy
- completely, throughly
perplex
- (intensifier)
perfervid
- indicating that a chemical compound contains a high proportion of a specified element
peroxide
perchloride
- indicating that a chemical element is in a higher than usual state of oxidation
perchlorate
permanganate
- not in technical usage a variant of peroxy-
persulphuric acid
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Usage Note
Per meaning a or an or for each occurs chiefly in technical or statistical contexts: miles per gallon; work-hours per week; feet per second; gallons of beer per person per year. It is also common in sports commentary: He averaged 16 points per quarter. Per is sometimes criticized in business writing in the sense “according to†and is rare in literary writing.
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51³Ô¹Ï History and Origins
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51³Ô¹Ï History and Origins
Origin of per1
C15: from Latin: by, for each
Origin of per2
from Latin per through
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