Dictionary
xi
Pronunciation: (zī, sī; Gk. ksē), [key]—
n.,
—pl. xis.
1. the 14th letter of the Greek alphabet (Ξ, ξ).
2. the group of consonant sounds represented by this letter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: - xi (Thesaurus)
- xi (Encyclopedia)