xi
Proposed by a contributor, not yet supported by evidence.
Also seen as: xis
Sense 1
The 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.
chữ thứ 14 trong tiếng Hy Lạp Cổ điển và Hiện đại
Machine-translated — suggest a fix
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Either of a pair of hyperons having spin 1/2, which decay into a lambda particle and a pion.
một trong hai hyperon có spin 1/2, phân rã thành một hạt lambda và một pion
Machine-translated — suggest a fix
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
A football (soccer) team of eleven players.
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
A cricket team of eleven players.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “xi” mean?
The 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.
Is “xi” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.