octane

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun any isomeric saturated hydrocarbon found in petroleum and used as a fuel and solvent

Semantic network

Broader (hypernyms)
hydrocarbon

A single word — an entire dictionary opens.

Type a word, a sentence, a book title, or a link to an English article. WordNet and the Classics answer.

Try

A library of classics · a vault of words · instant etymology & meaning

Continue reading

Nice save! Solidify it with review →