Dictionary.com
Thesaurus.com
Jump To:
  • 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:

As Clear Lake faces mercury contamination, toxic algal blooms and predatory invasive fish, the Clear Lake hitch — known by local tribes as the chi — are in serious trouble.

From Los Angeles Times ● Sep. 11, 2026

The tribes hope it will turn their ad hoc emergency work — which has coincided with an increase of chi in the lake — into a lasting strategy to protect the fish.

From Los Angeles Times ● Sep. 11, 2026

Simon hopes it moves the tribes one step closer to freely catching the chi again, like he did as a child.

From Los Angeles Times ● Sep. 11, 2026

Rather than focusing on explosive, fast-paced movements, tai chi is generally composed of slow, smooth, continuous movements staying within a modest range of motion.

From Los Angeles Times ● Aug. 18, 2026

Each familiar face triggered an avalanche of memories: tai chi on the lawn, singalongs in the music room, tie-dyeing, the hundreds upon hundreds of Halloween dance volunteers.

From "Schooled" by Gordon Korman

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

Kimi Chi, a salesman from the central city of Taichung, had travelled through the night to be able to photograph the aircraft landing in Taitung.

From Barron's ● Oct. 2, 2026

“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

Huong Thi Nguyen designs, makes and sells her own clothing across multiple stores in Ho Chi Minh City and Da Lat.

From BBC ● Jul. 5, 2026

Ho Chi Minh and his communist allies gained control of North Vietnam, with their capital in Hanoi.

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

When he was in Ch'i, for three months after hearing the Shao played, the Master knew not the taste of flesh.

From The Sayings Of Confucius by Leonard Arthur Lyall

Since this bird has gone to Ch’i, heavy rain will fall, and the people should be told to dig channels and repair the dykes, for the whole country will be inundated.”

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

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

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

Many of the chals and chis to be met with in “Lavengro” and “The Romany Rye” were transferred to the pages of those works from the East p. 71Anglian heaths and fairsteads. 

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

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

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training