Phrase guide

right angle

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

Half of the angle formed by a single straight line, equivalent to 90 degrees.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An ∟ character.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the 90 degree angle between two perpendicular lines

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: oblique angle

Broader terms: angle

History

Etymology

Calque of Latin angulus rectus.

Across languages

Translations

64 source translations are retained for this English entry.

  • Arabic: زَاوِيَة قَائِمَة — angle of 90 degrees
  • Asturian: ángulu reutu — angle of 90 degrees
  • Azerbaijani: düz bucaq — angle of 90 degrees
  • Bengali: সমকোণ (śomkōn) — angle of 90 degrees
  • Bulgarian: прав ъ́гъл (prav ǎ́gǎl) — angle of 90 degrees
  • Burmese: ထောင့်မှန် (htaung.hman) — angle of 90 degrees
  • Burmese: ကျင်တွယ်ထောင့် (kyangtwaihtaung.) — angle of 90 degrees
  • Catalan: angle recte — angle of 90 degrees
  • Chinese Mandarin: 直角 (zhíjiǎo) — angle of 90 degrees
  • Czech: pravý úhel — angle of 90 degrees
  • Danish: ret vinkel — angle of 90 degrees
  • Dutch: rechte hoek — angle of 90 degrees
  • Esperanto: orto — angle of 90 degrees
  • Estonian: täisnurk — angle of 90 degrees
  • Finnish: suora kulma — angle of 90 degrees
  • French: angle droit — angle of 90 degrees
  • French: droit — angle of 90 degrees
  • Galician: ángulo recto — angle of 90 degrees
  • Georgian: მართი კუთხე (marti ḳutxe) — angle of 90 degrees
  • German: rechter Winkel — angle of 90 degrees
  • Greek: ορθή γωνία (orthí gonía) — angle of 90 degrees
  • Ancient Greek: ὀρθὴ γωνία (orthḕ gōnía) — angle of 90 degrees
  • Hawaiian: huina kūpono — angle of 90 degrees
  • Hebrew: זָוִית יְשָׁרָה (zavít yeshára) — angle of 90 degrees
  • Hindi: समकोण (samkoṇ) — angle of 90 degrees
  • Hungarian: derékszög — angle of 90 degrees
  • Icelandic: rétt horn — angle of 90 degrees
  • Ingrian: oikia nurkka — angle of 90 degrees
  • Irish: dronuillinn — angle of 90 degrees
  • Italian: angolo retto — angle of 90 degrees
  • Japanese: 直角 (chokkaku) — angle of 90 degrees
  • Khmer: មុំកែង (mum kaeng) — angle of 90 degrees
  • Korean: 직각 (jikgak) — angle of 90 degrees
  • Lao: ມຸມສາກ (mum sāk) — angle of 90 degrees
  • Latin: angulus rectus — angle of 90 degrees
  • Macedonian: прав агол (prav agol) — angle of 90 degrees
  • Māori: koki hāngai — angle of 90 degrees
  • Marathi: काटकोन (kāṭkon) — angle of 90 degrees
  • Norwegian: rett vinkel — angle of 90 degrees
  • Persian: زاویه قائمه (zâviye-ye qâ'eme) — angle of 90 degrees
  • Persian: گوشه راست (guše-ye râst) — angle of 90 degrees
  • Polish: kąt prosty — angle of 90 degrees
  • Portuguese: ângulo reto — angle of 90 degrees
  • Romanian: unghi drept — angle of 90 degrees
  • Russian: прямо́й у́гол (prjamój úgol) — angle of 90 degrees
  • Scottish Gaelic: ceàrn ceart — angle of 90 degrees
  • Serbo-Croatian: прави кут — angle of 90 degrees
  • Serbo-Croatian: прави угао — angle of 90 degrees
  • Serbo-Croatian: pravi kut — angle of 90 degrees
  • Serbo-Croatian: pravi ugao — angle of 90 degrees
  • Shan: ၸဵင်ႇၶိုင်ႈ (tsàeng khūeng) — angle of 90 degrees
  • Sindhi: گُونِي ڪُنڊَ (gūnī kũḍa) — angle of 90 degrees
  • Slovak: pravý uhol — angle of 90 degrees
  • Spanish: ángulo recto — angle of 90 degrees
  • Spanish: escuadra — angle of 90 degrees
  • Swedish: rät vinkel — angle of 90 degrees
  • Tagalog: sihang tadlong — angle of 90 degrees
  • Tamil: செங்கோணம் (ceṅkōṇam) — angle of 90 degrees
  • Telugu: లంబకోణము (lambakōṇamu) — angle of 90 degrees
  • Thai: มุมฉาก (mum-chàak) — angle of 90 degrees
  • Ukrainian: прями́й кут (prjamýj kut) — angle of 90 degrees
  • Vietnamese: góc vuông — angle of 90 degrees
  • Volapük: lögul — angle of 90 degrees
  • Welsh: cyfongl — angle of 90 degrees