straight line (plural straight lines)
- (geometry) A line with no curvature; a line with constant direction. The path of shortest length between two points.
- Synonym: line
line with no curvature
- Armenian: ուղիղ (hy) (uġiġ)
- Catalan: recta (ca) f, línia recta f
- Chinese:
- Mandarin: 直線／直线 (zh) (zhíxiàn)
- Czech: přímka (cs) f
- Finnish: suora viiva
- French: droite (fr) f, ligne droite (fr) f
- Galician: liña recta f
- German: (geometry) Gerade (de) f, (geography) Luftlinie (de) f
- Greek:
- Ancient Greek: εὐθεῖα γραμμή f (eutheîa grammḗ), εὐθεῖα f (eutheîa)
- Icelandic: bein lína f, lína (is) f
- Ido: streko (io)
- Ingrian: soora
- Irish: líne dhíreach f
- Italian: linea retta (it) f, retta (it) f
- Japanese: 直線 (ja) (ちょくせん, chokusen)
- Latin: euthīa f, līnea rēcta f
- Malay: garis lurus (ms)
- Maori: hihi
- Navajo: kézdongo ídzo
- Piedmontese: reta f
- Portuguese: linha reta f
- Romanian: linie dreaptă (ro) f, dreaptă (ro) f
- Russian: пряма́я (ru) f (prjamája), пряма́я ли́ния (ru) f (prjamája línija)
- Sicilian: rittufilu
- Slovak: priamka f
- Spanish: recta (es)
- Swahili: mstari mnyoofu
- Telugu: సరళరేఖ (saraḷarēkha)
- Thai: เส้นตรง (th) (sên-dtrong)
- Turkish: doğru (tr)
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