Chi Definition & Meaning - Merriam-Webster


1 of 2

noun (1)

: the 22nd letter of the Greek alphabet see Alphabet Table


2 of 2

noun (2)

variants or ch'i or less commonly qi
often capitalized
: vital energy that is held to animate the body internally and is of central importance in some Eastern systems of medical treatment (such as acupuncture) and of exercise or self-defense (such as tai chi)

Example Sentences

Recent Examples on the Web
Jade rollers date back to ancient China and have been used for centuries to bring both positive chi and muscle relaxation to the face. Vanessa Powell, ELLE, 21 Nov. 2022 But here’s the thing: Once the construction ended in August and the chokehold on traffic eased up, there was a different chi, a different feel to the food and beverage. Ben Crandell, Sun Sentinel, 2 Oct. 2022 Feng shui plants are an easy, natural way to bring vibrant chi to your office. Amanda Garrity, Good Housekeeping, 21 Sep. 2022 But given the way that Mike drops the glasses on the table, was that another sign that he is annoyed by Saul and his chi machine? Brian Davids, The Hollywood Reporter, 1 Aug. 2022 To allow the chi to circulate freely throughout the room, employ organizational methods that keep your bedroom neat and tidy, and clear out any unwanted or unnecessary items. Jessica Bennett, Better Homes & Gardens, 8 Sep. 2021 Many of her students also lived in their apartment complex; why not organize a t’ai chi class outdoors? Valeria Ricciulli, Curbed, 7 June 2021 In the early days of the Christian Church, X — the Greek letter chi — acquired mystical significance, in part for its resemblance to the cross. New York Times, 1 June 2021 Practicing chi means learning to balance that energy, positive and negative, yin and yang., 21 Apr. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chi.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


Noun (1)

Greek chei, chi

Noun (2)

Chinese (Beijing) , literally, air, breath

First Known Use

Noun (1)

15th century, in the meaning defined above

Noun (2)

1850, in the meaning defined above

Time Traveler
The first known use of chi was in the 15th century

Dictionary Entries Near chi

Cite this Entry

Chi.” Dictionary, Merriam-Webster, Accessed 23 Mar. 2023.

Kids Definition


: the 22nd letter of the Greek alphabet
Χ or χ
Last Updated: - Updated example sentences
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