acceleration

Reading level: hard

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun an increase in rate of change
  2. noun the act of accelerating; increasing the speed
  3. noun (physics) a rate of increase of velocity

Etymology

First attested in 1531. From French accélération or more likely directly from Latin accelerātiō (“a hastening, acceleration”). Equivalent to accelerate + -ion.

In classic literature

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