Chi is most often used to mean the vitalessential for staying alive or functioning normally life force in Chinese philosophythe study of basic ideas about existence, knowledge, and values and traditional Chinese medicine. It can also refer to the 22nd letter of the Greek alphabeta set of letters used for writing a language.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /kaɪ/
Easy pronunciation: KYE (approximate spelling).
Stress: One syllable; stress is on the whole word.
Primary sense: the life energy or vital force in Chinese philosophy and traditional Chinese medicine.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Chi Meaning
life energy or vital force
Part of speech: noun
Definition: the circulating life energy believed in Chinese philosophy and traditional Chinese medicine to be present in all things and important for health
Example: She practices tai chi to help balance her chi.
Synonyms for this meaning:
- ch'i — Alternative transliteration of the same concept.
- ki — Used in some Japanese contexts for the same life-force idea.
- qi — Common modern transliteration of the same concept.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Other Meanings of Chi
Meaning 2
the Greek letter chi
Part of speech: noun
Definition: the 22nd letter of the Greek alphabet
Example: The symbol chi is used in mathematics and science.
Synonyms for this meaning:
- khi — Alternative transliteration/name for the Greek letter.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Chi Synonyms
Similar Meaning
- qi
- ki
- ch'i
the 22nd letter of the Greek alphabet
- khi
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Common Mistakes
- Do not confuse chi meaning life force with chi as the Greek letter.
- Do not treat transliterations like qi, ki, and ch'i as different meanings; they are names for the same concept.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What does chi mean?
Chi usually means the life force or vital energy in Chinese philosophy and traditional Chinese medicine. It can also mean the 22nd letter of the Greek alphabet.
What are synonyms of chi?
For the life-force sense, common equivalents are qi, ki, and ch'i. For the Greek letter, the alternative form is khi.
Is chi the same as qi?
Yes, in the life-force sense, chi and qi refer to the same concept, just with different spellings or transliterations.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-26. AI assessment; not a guarantee of accuracy.