Dictionary.com
Thesaurus.com
Synonyms

per

1 American  
[pur, per] / pɜr, pər /

preposition

  1. for each; for every.

    Membership costs ten dollars per year. This cloth is two dollars per yard.

  2. by means of; by; through.

    I am sending the recipe per messenger.

  3. Also according to; in accordance with.

    I delivered the box per your instructions.

    He managed to monopolize the meeting, per usual.


adverb

  1. Informal. each; for each one.

    The charge for window-washing was five dollars per.

per- 2 American  
  1. a prefix meaning “through,” “thoroughly,” “utterly,” “very”: pervert; pervade; perfect.

  2. 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 O5 ), permanganic (HMnO4 ), persulfuric (H 2 S 2 O8 ), acids; potassium permanganate (KMnO4 ); potassium persulfate (K 2 S 2 O8 ).


per. 3 American  

abbreviation

  1. percentile.

  2. period.

  3. person.


Per. 4 American  

abbreviation

  1. Persia.

  2. Persian.


per- 1 British  

prefix

  1. through

    pervade

  2. throughout

    perennial

  3. away, beyond

    perfidy

  4. completely, throughly

    perplex

  5. (intensifier)

    perfervid

  6. indicating that a chemical compound contains a high proportion of a specified element

    peroxide

    perchloride

  7. indicating that a chemical element is in a higher than usual state of oxidation

    permanganate

    perchlorate

  8. (not in technical usage) a variant of peroxy-

    persulphuric acid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

per 2 British  
/ pə, pɜː /

determiner

  1. for every

    three pence per pound

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

preposition

  1. (esp in some Latin phrases) by; through

  2. according to

    as per specifications

  3. informal as usual

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
PER 3 British  

abbreviation

  1. Professional Employment Register

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

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.

Etymology

Origin of per1

First recorded in 1580–90; from Latin: “through, by, for, for each”; for

Origin of per-2

From Latin, combining form of per, and used as an intensive; per

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Short-term plans may also have maximum benefit amounts as low as $100,000 per policy term, whereas ACA-compliant plans don’t put a dollar cap on benefits.

From Barron's

Forté’s death is being investigated by the state medical examiner’s office in Massachusetts, per the Vineyard Gazette.

From Los Angeles Times

He added that $350 million for affordable housing would create about 350 units of affordable housing per year, which would not do much to affect the city’s housing crisis.

From Los Angeles Times

Were the U.S. to replace that Danish grant, that alone would make the island’s residents the largest per capita recipients of federal grants, surpassing denizens of Alaska or Washington, D.C.

From The Wall Street Journal

During the regular season, the Bears gave up 24.4 points and 361.8 yards per game, which ranked 23rd and 28th, respectively, among 32 NFL teams.

From Los Angeles Times