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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:

After we talk, she plans to do a bit of tai chi, for which she uses an app on her phone and which she wishes more people practiced.

From Los Angeles Times ● Sep. 16, 2026

The tribes also have worked together after rains to orchestrate rescue missions for chi that are trapped in puddles, offshoots and agricultural ditches.

From Los Angeles Times ● Sep. 11, 2026

The Habematolel Pomo of Upper Lake catch and tag the chi to better understand their behavior.

From Los Angeles Times ● Sep. 11, 2026

As far back as stories go, the chi have been vital for the region’s Indigenous people.

From Los Angeles Times ● Sep. 11, 2026

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

A group of former Cornell students, who belonged to the same Chi Phi fraternity as the seven accused but graduated before the alleged incident, also complained of online smear campaigns.

From Barron's ● Oct. 15, 2026

Purush and Hamidabai Chi Kothi were two of his most famous plays.

From BBC ● Oct. 8, 2026

MIT postdoctoral researchers Jessica Shay and Fangtao Chi are the paper's lead authors.

From Science Daily ● Oct. 6, 2026

This aspect mirrors a frightening contemporary pattern reflected in the Cornell case, in which an alleged Snapchat thread from the Chi Phi house is presented as evidence.

From Salon ● Oct. 2, 2026

Ho Chi Minh was intent on reuniting his country under Communism.

From "Boots on the Ground: America's War in Vietnam" by Elizabeth Partridge

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

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

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

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

Ching, Duke of Ch'i, had a thousand teams of horses; but the people, on his death day, found no good in him to praise.

From The Sayings Of Confucius by Leonard Arthur Lyall

Chung, personal name Yi-wu, chief minister to Duke Huan of Ch'i, + 645 b.c.: see notes to iii.

From The Sayings Of Confucius by Leonard Arthur Lyall

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

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 George Gibbs

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 William A. (William Alfred) Dutt

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

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

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

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

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