: the vital force that in Chinese thought is inherent in all things (plural: QIS)
About the Word:
Devoted SCRABBLE players use the dictionary as their arsenal. Every variation of a word - plural forms, alternate spellings - can be used to gain the edge in competition.
Although it's most commonly spelled CHI in standard usage, the variant form QI is the single most-played word in SCRABBLE tournaments, according to game records of the North American SCRABBLE Players Association (NASPA).