dual
Proposed by a contributor, not yet supported by evidence.
Also seen as: duals · dualing · dualling · dualed
Sense 1
Characterized by having two (usually equivalent) components.
Adjective
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
Pertaining to two, pertaining to a pair of.
Adjective
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 3
Of an item that is one of a pair, the other item in the pair.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 4
Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
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 “dual” mean?
Characterized by having two (usually equivalent) components.
Is “dual” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.