Proper Definition

prŏpər
adjective
properer, properest
Characterized by appropriateness or suitability; fitting.
The proper knife for cutting bread; not a proper moment for a joke.
American Heritage
Specially adapted or suitable to a specific purpose or specific conditions; appropriate.
The proper tool for a job.
Webster's New World
Called for by rules or conventions; correct.
The proper form for a business letter.
American Heritage
Strictly following rules or conventions, especially in social behavior; seemly.
A proper lady; a proper gentleman.
American Heritage
Conforming to an accepted standard or to good usage; correct.
A proper spelling.
Webster's New World
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adverb
Completely; thoroughly.
Webster's New World
Properly; correctly.
Webster's New World
Proper is defined as thoroughly and completely.
An example of something done proper is a science project finished correctly and all the way through, completed good and proper.
YourDictionary

(nonstandard, slang) Properly.

Wiktionary
noun
The special office or prayers for a particular day or festival.
Webster's New World
Those parts of the Mass which vary according to the particular day or festival.
Webster's New World
Synonyms:
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other
See Necessary and Proper Clause.
Webster's New World Law

Other Word Forms of Proper

Noun

Singular:
proper
Plural:
propers

Adjective

Base Form:
proper
Comparative:
properer
Superlative:
properest

Origin of Proper

  • From Anglo-Norman proper, propre, Old French propre (French: propre), and their source, Latin proprius.

    From Wiktionary

  • Middle English propre from Old French from Latin proprius per1 in Indo-European roots

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

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