Per definition

pûr
Per hour.

Was driving at 60 miles per.

adverb
28
10
Person.
abbreviation
24
6
To, for, or by each; for every.

Gasoline once cost 40 cents per gallon.

preposition
33
16
Through; by; by means of.
preposition
11
2
Period.
abbreviation
11
3
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For each one; apiece.

Sold the cookies for one dollar per.

adverb
9
4
By means of; through.
preposition
7
4
Period.
abbreviation
3
1
Persian.
abbreviation
2
0
According to; by.

Changes were made to the manuscript per the author's instructions.

preposition
5
4
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Per is defined as to, for, by or according to.

An example of per used as a preposition is in the phrase, "as per standards," which means by the standards.

preposition
1
0
Per mean for each once.

An example of per used as an adverb is in the phrase, "one cookie per person," which means one cookie for each person.

adverb
1
0
Containing the maximum amount of the indicated element.

Perfluoropropane (completely fluorinated propane, C3F8)

affix
1
0
According to; in accordance with.

Per your instructions.

preposition
0
0
For each; for every.

Fifty cents per yard.

preposition
0
0
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During each.

To cover 500 miles per day.

preposition
0
0
Thoroughly, completely, very.

Perfervid.

affix
0
0
Containing the divalent group O2

Peracid.

affix
0
0
Period.
abbreviation
0
0
initialism
0
0
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Containing a large or the largest possible proportion of an element.

Peroxide.

prefix
1
2
Person.
abbreviation
1
2
Containing the peroxy group.

Peracid.

prefix
0
1
Persia.
abbreviation
0
1
Through, throughout.

Perfoliate, peroral.

affix
0
1
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Containing a specified element or radical in its maximum, or a relatively high, valence.

Perchloric acid.

affix
0
1
Thoroughly; completely; intensely.

Perfervid.

prefix
0
2
Containing an element in its highest oxidation state.

Perchloric acid.

prefix
0
2
as per usual
  • in the usual way; as usual
idiom
0
0

Idioms and Phrasal Verbs

Origin of per

  • L < per, through: see per

    From Webster's New World College Dictionary, 5th Edition

  • Latin from per through per1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Latin per1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition