noun

• The twenty-second letter of the Classical and Modern Greek alphabets.
• (philosophy) A life force in traditional Chinese philosophy, culture, medicine, etc, related (but not limited) to breath and circulation.
• The Chinese foot, a traditional Chinese unit of length based on the human forearm.
• (Mainland China) The Chinese unit of length standardized in 1984 as ¹/₃ of a meter.
• (Taiwan) The Taiwanese unit of length standardized as ¹⁰/₃₃ of a meter, identical to the Japanese shaku.
• (Hong Kong) The chek or Hong Kong foot, a unit of length standardized as 0.371475 meters.
• (historical, dated) Qi, an ancient Chinese duchy, and later kingdom, under the Zhou dynasty
• A Chinese surname.
• (slang) Chicago
• (slang) Chichester (city in England)
• A male given name.
• Clipping of chihuahua.
• (informal) Clipping of Chihuahua. [A city, the state capital of Chihuahua, Mexico]
• (sports) Abbreviation of Chicago. [A large city, the county seat of Cook County, in northeastern Illinois, United States, located on Lake Michigan.]