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Encyclopedia

Comparison of Area units
Unitnearest SISI base
1 ca 1 m2 1 m2
1 a 1 dam2 102 m2
1 ha 1 hm2 104 m2
100 ha 1 km2 106 m2
non-SI comparisons
non-SImetricSI base
119.6 sq yard 1 a 102 m2
1076.39 sq ft 1 a 102 m2

Are (symbol a, pronounced /ˈɛər/ or sometimes /ˈɑr/) is a unit of area, equal to 100 square metres (10 m × 10 m), used for measuring land area. It was defined by older forms of the metric system, but is now outside of the modern International System (SI). [1]

It is commonly used in many countries—in particular, in Indonesia, French-, Portuguese-, Slovakian-, Czech-, Polish-, Dutch- and German-speaking countries—to measure real estate; elsewhere, the square metre is usually used. The are is sometimes used in combination with the centiare, e.g. "10 ares 12 centiares" = 1012 m2. Larger land areas are generally measured in hectares. The decare is commonly used in the former Ottoman countries, usually under local names. Other prefixes for multiples and submultiples of the are are not in common use. There are other local units which are exact multiples of the are, e.g. the Thai rai, 16 a.

The are is the standard unit of measurement for private plots of land (as opposed to large industrial and agricultural properties) in Russia and all the countries of the former Soviet Union. But since the original root word "are" has never been in use in Russian, and only the word "hectare" exists as a unit of land measurement, the Russian word for "are" is "sotka" (сотка), which roughly translates as "hundredth". Thus, the Russian language regards the hectare as the "root" unit of measurement, and a "sotka" is essentially a "centihectare", or (1 a × 100 ÷ 100). City dwellers in the former USSR use the term "sotka" to describe the size of their suburban dacha or allotment garden plots or small city parks; country dwellers or wealthy suburban homeowners use it to describe the size of the private yards around their houses, small private orchards, and the like. Hectares are used to describe larger plots of land, such as a factory complex, a collective farm, a university campus, or a nature preserve.

Contents

Conversions

One are is equivalent to:

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Metric

  • 0.0001 km2 (square kilometres)
  • 0.01 ha (hectares)
  • dam2 = 10 m × 10 m (a square 10 metres on a side)
  • 100 m2 (square metres)
  • 100 ca (centiares)

English units

  • 0.000 038 610 2 square miles (statute)
  • 0.024 710 538 international acres
  • 0.024 710 439 U.S. survey acres
  • approximately 1076.39 square feet

Other

See also

  • 1 E2 m² for a comparison with other areas

References

External links

  • US NIST Reference on SI, Table 7. Other units outside the SI that are currently accepted for use with the SI, subject to further review. Note that this source refers to BIPM SI 7th edition. Reference should be made to BIPM SI 8th edition.

Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

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See also Åre, arë, -are, and -aré

Contents

English

Most common English words: they « my « were « #36: are » their » one » so

Etymology 1

From Middle English arn, aren, from Old English N. Dial. earun, earon (are) and Old Norse er (displacing Old English sind), from Proto-Indo-European *h₁es- (to be, exist) (through rhotacism), alt. from Proto-Indo-European *h₁er- (to move, set in motion).

Pronunciation

Stressed
Unstressed

Verb

are

  1. Second-person singular simple present tense of be.
    Mary, where are you going?
  2. First-person plural simple present tense of be.
    We are not coming.
  3. Second-person plural simple present tense of be.
    Mary and John, are you listening?
  4. Third-person plural simple present tense of be.
    They are here somewhere.
Synonyms
  • (second-person singular): (archaic) art (used with thou)
Translations

See also

Etymology 2

From French are.

Noun

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Singular
are

Plural
ares

are (plural ares)

  1. (rare) An accepted (but deprecated and rarely used) SI unit of area equal to 100 square metres, or a former unit of approximately the same extent. Symbol: a
Usage notes
  • Are is now rarely used except in its derivative hectare.
Synonyms
Derived terms
Translations

Anagrams


Basque

Noun

are

  1. rake

Dutch

Noun

are

  1. are, a unit of surface area

French

Etymology

From Latin area, a piece of level ground.

Pronunciation

  • Homophones: art

Noun

are m. (plural ares)

  1. An are.

Italian

Noun

are f. pl.

  1. Plural form of ara.

Anagrams


Japanese

Prefix

are (kanji 彼れ, hiragana あれ)

  1. that one over there

See also

Japanese demonstratives (edit)
ko- so- a- do-
Pronoun
Determiner
Kind んな んな んな んな
Place そこ*
Direction ちら ちら ちら ちら
Manner
* irregular

Usage notes

  • The hiragana spelling (あれ) is preferred to the kanji spelling (彼れ), which is rarely used.

Noun

are (hiragana あれ)

  1. 荒れ: stormy weather, tempest, chaps (of skin)



Mapudungun

Noun

are (using Raguileo Alphabet)

  1. warmth, heat

Old English

Pronunciation

Noun

āre (form of ār)

  1. Accusative, genitive or dative singular of ār.
  2. Nominative or accusative plural of ār.

Old Frisian

Noun

are

  1. ear

Romanian

Verb

are

  1. third-person singular present tense form of avea. he/she has

See also


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