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  • chi
    chi
    noun
    the twenty-second letter of the Greek alphabet (X, χ).
  • Chi
    Chi
    noun
  • Ch'i
    Ch'i
    noun
    one of two dynasties that ruled in China a.d. 479–502 and, as the Northern Ch'i, a.d. 550–77.
Synonyms

chi

1 American  
[kahy] / kaɪ /

noun

chis plural
  1. the twenty-second letter of the Greek alphabet (X, χ).

  2. the consonant sound represented by this letter.


chi 2 American  
[chee] / tʃi /

noun

Wade-Giles.
  1. qi.


Chi 3 American  
[chahy] / tʃaɪ /

noun

  1. Chicago.


Ch'i 4 American  
[chyee] / tʃji /
(Pinyin) Qi

noun

  1. one of two dynasties that ruled in China a.d. 479–502 and, as the Northern Ch'i, a.d. 550–77.


chi 1 British  
/ kaɪ /

noun

  1. the 22nd letter of the Greek alphabet (Χ, χ), a consonant, transliterated as ch or rarely kh

"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

chi 2 British  
/ tʃiː /

noun

  1. (sometimes capital) (in Oriental medicine, martial arts, etc) vital energy believed to circulate round the body in currents

"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

Etymology

Origin of chi1

From Greek

Origin of Chi3

By shortening

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:

The ordinance that restricts yoga instruction at city parks does not outlaw teaching other subjects including tai chi and Shakespeare, the city has conceded in court proceedings.

From Los Angeles Times Jul. 2, 2026

I produced this 20-minute film to help him fulfill that dream, but the main idea was to share tai chi with technology employees who are working 16 hours a day.

From The Wall Street Journal May 4, 2026

"I've tried antidepressants, antipsychotics, mood stabilizers, benzos, sleeping pills and stimulants, cognitive behavioral therapy, dialectical behavioral therapy... tai chi, reiki, meditation, veganism, art therapy and music therapy," the former stand-up comedian said.

From Barron's Feb. 25, 2026

Former international rugby referee Nigel Owens said "Meddwl amdano chi" which translates to thinking of you.

From BBC Aug. 12, 2025

I grabbed the microphone from a sixth-grade girl who insisted that tai chi had made her unbeatable at gymnastics.

From "Schooled" by Gordon Korman

“There was a real sense, I think, a year ago that maybe Santa Monica’s best days were behind it,” City Manager Oliver Chi said in an interview.

From The Wall Street Journal Jul. 6, 2026

Exercise, such as Tai Chi, also improves balance and muscle strength, reducing the risk of falls that could lead to fractures.

From Science Daily Jun. 25, 2026

Blanca Vanburian, who was doing a variation of Tai Chi on the lawn outside her apartment building, had several good questions, including one about whether the city could be trusted to maintain a new park.

From Los Angeles Times Jun. 20, 2026

Police said they tracked down the group on 11 June after investigating a spate of pet thefts in Ho Chi Minh City, according to local media reports.

From BBC Jun. 16, 2026

Ho Chi Minh seized the opportunity to fill the power vacuum left by the Japanese defeat.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin

Like Quemoy 's 100,000-man garrison, Cheng Ch'i is a refugee from the China mainland having fled Kiangsi province in 1949 before the conquering Red tide.

From Time Magazine Archive

China this week celebrated a memorable anniversary: San Ch'i, "Triple Seven," or the seventh day of the seventh month of the seventh year of resistance to Japan.

From Time Magazine Archive

T’ai Yin ordered Ma P’o to conduct Lu Ch’i from the palace.

From Myths and Legends of China by Werner, E. T. C. (Edward Theodore Chalmers)

Page 147 The army of Têng Chiu-kung was camped at San-shan Kuan, when he received orders to proceed to the battle then taking place at Hsi Ch’i.

From Myths and Legends of China by Werner, E. T. C. (Edward Theodore Chalmers)

Ch’i; one of the elements of creation, 90 P’o Chia.

From Myths and Legends of China by Werner, E. T. C. (Edward Theodore Chalmers)

I was given opportunity to present to our comparatively small public the freshly minted words, die, chis, and chim, as common gender pronouns, designed to avoid certain awkward situations frequently arising in English composition.

From Time Magazine Archive

She could well afford to, the chis muttered among themselves.

From O. Henry Memorial Award Prize Stories of 1919 by Various

This last-mentioned fact is the more striking in view of the intense admiration often felt for the handsome chis by men who were not of the gipsy race. 

From George Borrow in East Anglia by Dutt, William A. (William Alfred)

"Where," I asked, "are the Romany chals and the Romany chis?"

From The Man from Archangel and Other Tales of Adventure by Doyle, A. Conan

How many? kwén-chis; how many people? ko-nái-ya; how many dollars? ko-nai chis ngun dolla; how much money have you? ko-nai te chin dolla.

From Alphabetical Vocabularies of the Clallum and Lummi by Gibbs, George

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