rational
Proposed by a contributor, not yet supported by evidence.
Also seen as: rationals
Sense 1
Capable of reasoning.
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
Capable of reasoning. — Behaving according to some partial order of preferences.
Adjective
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
A rational number: a number that can be expressed as the quotient of two integers.
số hữu tỷ: số có thể biểu thị là thương của hai số nguyên
Machine-translated — suggest a fix
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 4
The breastplate worn by Israelite high priests.
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 “rational” mean?
Capable of reasoning.
Is “rational” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.