English Reference

Word

chi

US/ˈkaɪ/

UK/tʃˈaɪ/

Definitions

01life force

B2 · Religion

n. the energy or life force that people in traditional Chinese medicine and philosophy believe flows through the body.

n. the vital life force or energy whose flow is central to traditional Chinese medicine, martial arts, and philosophy.

“The teacher told us to focus on our chi while we practiced the slow movements of Tai Chi.”

“Practitioners of traditional Chinese medicine believe that an imbalance or blockage of chi within the body's meridians can lead to physical illness.”

Usage

Often spelled 'qi' in modern English contexts.

Teaching tip

Explain to students that 'qi' is the more common academic spelling, while 'chi' is frequently seen in older texts or popular culture.

Synonyms

energylife forceqi

02Greek letter

C1

n. the twenty-second letter of the Greek alphabet, written as X.

n. the twenty-second letter of the Greek alphabet, represented by the symbol Χ.

“The professor used the Greek letter chi to represent a specific value in the equation.”

“In statistics, the chi-squared test is a common method used to determine if there is a significant difference between expected and observed frequencies.”

Technical

Usage

Usually appears in mathematical, scientific, or linguistic contexts.

03Chicago

C1

n. a short, informal name for the city of Chicago.

n. a colloquial clipping or nickname for the city of Chicago, Illinois.

“He grew up in Chi and still goes back every summer to visit his family.”

“The rapper often references his upbringing in Chi-town, using the city's nickname to establish a sense of local authenticity in his lyrics.”

American English · Slang · Informal

Synonyms

ChicagoWindy City

04Chinese unit of length

C2

n. a traditional Chinese unit of length, similar to a foot.

n. a traditional Chinese unit of linear measure, historically based on the length of a forearm and now standardized in various regions.

“The old carpenter measured the wood using the traditional chi instead of meters.”

“While the metric system is official, some local markets still use the chi to measure fabric and traditional building materials.”

Technical

Usage

The exact length varies between Mainland China, Taiwan, and Hong Kong.

Synonyms

Chinese foot

Domains

PhilosophySports

This entry

Level
C1 · Advanced
Frequency
Frequent
Updated

Scan code

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English Reference