Phrase guide

straight angle

noun · 2 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

noun

Meaning 1

An angle that is equal to 180° (pi radians or two right angles).

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 angle of 180 degrees

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: angular unit

History

Etymology

No etymology was provided for this word.

Across languages

Translations

20 source translations are retained for this English entry.

  • Arabic: زَاوِيَة مُسْتَقِيمَة — angle equal to 180°
  • Azerbaijani: açıq bucaq — angle equal to 180°
  • Bulgarian: изпра́вен ъ́гъл (izpráven ǎ́gǎl) — angle equal to 180°
  • Chinese Mandarin: 平角 (píngjiǎo) — angle equal to 180°
  • Finnish: oikokulma — angle equal to 180°
  • French: angle plat — angle equal to 180°
  • Hebrew: זָוִית שְׁטוּחַה (zavít shtuḥá) — angle equal to 180°
  • Hungarian: egyenesszög — angle equal to 180°
  • Italian: angolo piatto — angle equal to 180°
  • Japanese: 平角 (heikaku) — angle equal to 180°
  • Korean: 평각 (pyeonggak) — angle equal to 180°
  • Macedonian: ра́мен а́гол (rámen ágol) — angle equal to 180°
  • Polish: kąt półpełny — angle equal to 180°
  • Portuguese: ângulo raso — angle equal to 180°
  • Russian: развёрнутый у́гол (razvjórnutyj úgol) — angle equal to 180°
  • Slovak: priamy uhol — angle equal to 180°
  • Swedish: rak vinkel — angle equal to 180°
  • Tagalog: sihang ladlad — angle equal to 180°
  • Turkish: doğru açı — angle equal to 180°
  • Vietnamese: góc bẹt — angle equal to 180°