acceleration
Proposed by a contributor, not yet supported by evidence.
Also seen as: accelerations
Sense 1
The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
Noun
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
Noun
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “acceleration” mean?
The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
Is “acceleration” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.