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  • xi
    xi
    noun
    the 14th letter of the Greek alphabet (Ξ, ξ).
  • Xi
    Xi
    noun
    a river in S China, rising in Yunnan province and flowing east to the Canton delta on the South China Sea: the main river system of S China. Length: about 1900 km (1200 miles)

xi

American  
[zahy, sahy, ksee] / zaɪ, saɪ, ksi /

noun

xis plural
  1. the 14th letter of the Greek alphabet (Ξ, ξ).

  2. the group of consonant sounds represented by this letter.


Xi 1 British  
/ ʃiː /

noun

  1. a river in S China, rising in Yunnan province and flowing east to the Canton delta on the South China Sea: the main river system of S China. Length: about 1900 km (1200 miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

xi 2 British  
/ ksaɪ, saɪ, ksiː, zaɪ /

noun

  1. the 14th letter in the Greek alphabet (Ξ, ξ), a composite consonant, transliterated as x

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Vocabulary lists containing xi

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Pollard and Liu propose these two alloys, which could have been prefabricated as ingots and distributed to bronze foundries, are jin and xi.

From Science Magazine Aug. 9, 2022

Monks also aren’t going to tell you to say, “Gong xi fa cai,” she said, referring to the common New Year greeting, which literally translates to “Hope you increase your wealth.”

From Los Angeles Times Jan. 28, 2022

The COVID-19 variants are named after Greek alphabet letters, but WHO skipped the 13th and 14th letters, nu and xi, in labeling the omicron variant.

From Washington Times Nov. 28, 2021

In doing so, the WHO decided to skip over two letters in the Greek alphabet: nu and xi.

From Slate Nov. 28, 2021

Even those who were in the northern cities forsook all in order to come to Jerusalem, as we read in 2 Chron. xi.

From The History of the Ten "Lost" Tribes Anglo-Israelism Examined by Baron, David

That was why Xi kept leaning on the state sector as the centerpiece of his economic model, Gao said, and why the line between state and private kept blurring rather than sharpening.

From The Wall Street Journal Jul. 14, 2026

Chen’s case was raised by President Trump during a May meeting with China’s leader Xi Jinping in Beijing, the supporters say.

From The Wall Street Journal Jul. 14, 2026

Still, the May visit couldn’t be more different from the two men’s first meeting in 2013, when Xi chose Moscow for his first foreign trip as Chinese leader.

From The Wall Street Journal Jul. 14, 2026

Viewed from the side, Xi appeared to loom over Putin in the picture.

From The Wall Street Journal Jul. 14, 2026

“The Xi are only one of many races of fay peoples,” Mona said.

From "Huntress" by Malinda Lo

The xis pronounced here, though it sounds like an h in the name it comes from, Don Quixote.

From "Woe Is I" by Patricia T. O'Conner

It is not thinkable, and yet the like of it happened to xis in Seville from our manager.

From Familiar Spanish Travels by Howells, William Dean

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