equation
Proposed by a contributor, not yet supported by evidence.
Also seen as: equations
Sense 1
The act or process of equating two or more things, or the state of those things being equal (that is, identical).
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
An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; in mathematical problems, equations describe various essential aspects of the problem, each of which contributes to the resolution of the problem in part.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “equation” mean?
The act or process of equating two or more things, or the state of those things being equal (that is, identical).
Is “equation” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.