Xi

UK:*UK and possibly other pronunciations'Xi': Chinese: /ʃiː/; 'xi': /zaɪ/, /saɪ/, /ksaɪ/, /ksiː/

US:USA pronunciation: respellingUSA pronunciation: respelling(zī, sī; Gk. ksē)


Inflections of 'xi' (n): npl: xis

Collins Concise English Dictionary © HarperCollins Publishers::
Xi, Hsi, Si / ʃiː/
  1. a river in S China, rising in Yunnan province and flowing east to the Zhu Jiang delta on the South China Sea: the main river system of S China. Length: about 1900 km (1200 miles)
WordReference Random House Unabridged Dictionary of American English © 2026
xi  (zī, sī; Gk. ksē),USA pronunciation n., pl. xis. 
  1. the 14th letter of the Greek alphabet (Χ, χ).
  2. the group of consonant sounds represented by this letter.

Collins Concise English Dictionary © HarperCollins Publishers::
xi / zaɪ saɪ ksaɪ ksiː/ (xis)
  1. the 14th letter in the Greek alphabet (Ξ, ξ), a composite consonant, transliterated as x
'Xi' also found in these entries (note: many are not synonyms or translations):

Forum discussions with the word(s) "Xi" in the title:


Look up "Xi" at Merriam-Webster
Look up "Xi" at dictionary.com
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