pentagon

See also: Pentagon and pentàgon

English

A regular pentagon

Etymology

From Middle French pentagone, from Late Latin pentagōnum, from Ancient Greek πεντάγωνον (pentágōnon), noun use of the neuter of the adjective πεντάγωνος (pentágōnos, “five-angled”), from πέντε (pénte, “five”) + -γωνος (-gōnos, “angled”). Equivalent to penta- +‎ -gon.

Pronunciation

• (US, Canada) enPR: pĕn'təgän, IPA^(key): /ˈpɛn.təˌɡɑn/
• (UK) enPR: pĕn'təgən, pĕn'təgŏn, IPA^(key): /ˈpɛn.tə.ɡən/, /ˈpɛn.tə.ɡɒn/
• Hyphenation: pen‧ta‧gon

• Audio (Canada):

  (file)

Noun

pentagon (plural pentagons)

2. (geometry) A polygon with five sides and five angles.
   • 1884, A Square [pseudonym; Edwin A. Abbott], Flatland […] , London: Seeley & Co., Part I: This World, § 1.— Of the Nature of Flatland, page 3:

     Imagine a vast sheet of paper on which straight Lines, Triangles, Squares, Pentagons, Hexagons, and other figures, instead of remaining fixed in their places, move freely about, […]

3. (military) A fort with five bastions.

Synonyms

• 5-gon
• (geometry): quinquangle

Derived terms

• pentagonal

Translations

a polygon with five sides and five angles

• Afrikaans: pentagoon, vyfhoek (af)
• Arabic: خماسي أضلاع
• Armenian: հնգանկյույն (hngankyuyn), պենտագոն (hy) (pentagon)
• Asturian: pentágonu m
• Belarusian: пяціку́тнік m (pjacikútnik)
• Bengali: পঞ্চভুজ (bn) (poncobhuj)
• Bulgarian: петоъгъ́лник m (petoǎgǎ́lnik)
• Burmese: ပဉ္စဂံ (my) (panyca.gam)
• Catalan: pentàgon (ca) m
• Chinese:

  Mandarin: 五角形 (zh) (wǔjiǎoxíng), 五边形 (zh) (wǔbiānxíng)

• Czech: pětiúhelník (cs) m
• Danish: pentagon (da) c, femkant (da) c
• Dutch: vijfhoek (nl) m
• Esperanto: kvinlatero, kvinangulo
• Estonian: viisnurk (et), pentagoon
• Finnish: viisikulmio (fi), pentagoni (fi)
• French: pentagone (fr) m
• Friulian: pentagon m
• Galician: pentágono (gl) m
• Georgian: ხუთკუთხედი (xutḳutxedi)
• German: Fünfeck (de) n, Pentagon (de) n
• Greek: πεντάγωνο (el) n (pentágono)

  Ancient: πεντάγωνον n (pentágōnon)

• Gujarati: પંચકોણ (pañckoṇ)
• Hebrew: מחומש \ מְחֻמָּשׁ m (mekhumásh)
• Hindi: पंचकोण (hi) m (pañckoṇ)
• Hungarian: ötszög (hu)
• Icelandic: fimmhyrningur m
• Ido: pentagono (io)
• Indonesian: segi lima
• Irish: peinteagán
• Italian: pentagono (it) m
• Japanese: 五角形 (ja) (ごかくけい, gokakukei, ごかっけい, gokakkei)
• Kannada: ಪಂಚಕೋಣ (pañcakōṇa)
• Kazakh: бесбұрыш (besbūryş)
• Khmer: បញ្ចកោណ (km) (pañcaʼkaon)
• Korean: 오각형 (ko) (ogakhyeong)
• Kumyk: беш мююшлюк (beş müyuşlük)
• Latvian: piecstūris
• Luxembourgish: Fënnefeck m
• Macedonian: пета́голник m (petágolnik)
• Malay: pancakona, segi lima
• Maori: taparima
• Navajo: ashdlaʼgo bízniikʼą́, ashdlaʼgóó adeezʼá
• Norwegian:

  Bokmål: femkant (no) m, pentagon (no) m

  Nynorsk: femkant m, pentagon m

• Persian: please add this translation if you can
• Polish: pięciokąt (pl) m
• Portuguese: pentágono (pt) m
• Romagnol: please add this translation if you can
• Russian: пятиуго́льник (ru) m (pjatiugólʹnik)
• Scottish Gaelic: còig-cheàrnach m
• Serbo-Croatian:

  Cyrillic: петерокут m, петоугаоник m

  Roman: peterokut (sh) m, petougaonik m

• Slovak: päťuholník m
• Slovene: peterokotnik (sl) m
• Southern Altai: бештолык (beštolïk)
• Spanish: pentágono (es) m
• Swedish: pentagon (sv) c
• Tagalog: limsiha
• Tamil: ஐங்கோணம் (ta) (aiṅkōṇam)
• Thai: ห้าเหลี่ยม (th) (hâa-lìiam)
• Tibetan: གཞོགས་ལྡ (gzhogs lda)
• Turkish: beşgen (tr)
• Ukrainian: п'ятику́тник m (pʺjatykútnyk)
• Uzbek: please add this translation if you can
• Vietnamese: ngũ giác (vi), hình năm cạnh
• Welsh: pumongl m
• Zulu: unxanhlanu class 1a/2a

See also

• Wikipedia article on pentagons
• pentagram
• quinquangle

Anagrams

• pantogen

Danish

Noun

pentagon c (singular definite pentagonen, plural indefinite pentagoner)

1. pentagon

Declension

Declension of pentagon

common gender	Singular		Plural
	indefinite	definite	indefinite	definite
nominative	pentagon	pentagonen	pentagoner	pentagonerne
genitive	pentagons	pentagonens	pentagoners	pentagonernes

Synonyms

• femkant

Related terms

• pentagonal

References

• “pentagon” in Den Danske Ordbog

Friulian

Noun

pentagon m (plural pentagons)

1. pentagon

Norwegian Bokmål

Etymology

From penta- +‎ -gon.

Noun

pentagon m (definite singular pentagonen, indefinite plural pentagoner, definite plural pentagonene)

1. (geometry) a pentagon

Synonyms

• femkant

References

• “pentagon” in The Bokmål Dictionary.
• “pentagon” in Det Norske Akademis ordbok (NAOB).

Norwegian Nynorsk

Etymology

From penta- +‎ -gon.

Noun

pentagon m (definite singular pentagonen, indefinite plural pentagonar, definite plural pentagonane)

1. (geometry) a pentagon

Synonyms

• femkant

References

• “pentagon” in The Nynorsk Dictionary.

Romanian

Etymology

Borrowed from French pentagone, from Latin pentagonus.

Noun

pentagon n (plural pentagoane)

1. Pentagon

Declension

Declension of pentagon

	singular		plural
	indefinite articulation	definite articulation	indefinite articulation	definite articulation
nominative/accusative	(un) pentagon	pentagonul	(niște) pentagoane	pentagoanele
genitive/dative	(unui) pentagon	pentagonului	(unor) pentagoane	pentagoanelor
vocative	pentagonule		pentagoanelor

Further reading

• pentagon in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language)