Octane Meaning in English

word

US

ˈɑkteɪn

AHK-tayn

UK

ˈɒkteɪn

OK-tayn

Definition

A chemical compound in gasoline, often used to measure how well fuel can resist knocking in engines. Commonly seen as 'octane rating' at gas stations.

Usage & Nuances

'Octane' is most often used when talking about fuel quality ('high-octane' gas). It's a technical and scientific term, commonly heard at gas stations but rarely outside automotive or chemistry contexts. Don't confuse with 'octagon' (shape).

• Spanish: octano
• Portuguese (BR): octano
• Portuguese (PT): octano
• Chinese (Simplified): 辛烷值
• Chinese (Traditional): 辛烷值
• Hindi: ऑक्टेन
• Arabic: الأوكتان
• Bengali: অকটেন
• Russian: октан
• Japanese: オクタン
• Vietnamese: octan
• Korean: 옥탄
• Turkish: oktan
• Urdu: اوکٹین
• Indonesian: oktan

Example Sentences

This gasoline has a high octane rating.

basic

Engine performance improves with better octane fuel.

basic

The octane number is shown on the gas pump.

basic

Should I pay extra for premium octane gas?

natural

Some sports cars need higher octane to avoid engine knocks.

natural

This brand advertises its fuel as ultra-high octane for performance.

natural