China

• Chao, an alternative spelling of Zhao (surname)
  Zhao (surname)
  Zhao / Chao or Chiu is a common Chinese family name, ranking as the 7th most common surname in Mainland China. Zhao is the first surname in the famous Hundred Family Surnames – the traditional list of all Chinese surnames – because it was the royal surname of the Song Dynasty when the list was...
  
   (趙/赵); an alternative pronunciation of Cao (Chinese surname) and Cao (state)
  Cao (state)
  The State of Cáo was a vassal state in China during the Zhou Dynasty . The state was founded sometime in the 11th century BCE by Caoshu Zhènduó （曹叔振鐸）, son of King Wen of Zhou and the younger brother of King Wu of Zhou. With its capital at Táoqiū , the State of Cáo covered roughly the area of...
  
  
• Chao (晁), a Chinese surname
• Chāo
  Chao (currency)
  The Chao , was the official banknote of the Yuan Dynasty in China. Unlike the earlier paper money such as Jiaozi, it was the first paper currency to be used as the predominant circulating medium in the history of China....
  
   (鈔), the banknote used in Mongol Yuan Dynasty in China
• Chao Lake
• Chao method
  Tone contour
  A tone contour is a tone in a tonal language which shifts from one pitch to another over the course of the syllable or word. Tone contours are especially common in East and Southeast Asia, but occur elsewhere, such as the Kru languages of Liberia and the Ju languages of Namibia.-Themes:When the...
  
  , a way of indicating Chinese tones devised by Yuen Ren Chao
• Chǎo technique (炒), a Chinese stir frying technique

Spain and Latin America

• Chao
  Chao
  Chao or similar sounding câo, cháo, cháo, čhao, chau, ciao, jao, may refer to:-China:*Chao, an alternative spelling of Zhao ; an alternative pronunciation of Cao and Cao *Chao , a Chinese surname...
  
   a Spanish language
  Spanish language
  Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...
  
   parting phrase
  Parting phrase
  Parting phrases are elements of parting traditions, phrases used to acknowledge the parting of individuals or groups of people from each other....
  
   for "bye" or "goodbye"

Vietnam

• Cháo
  Rice congee
  Congee is a type of rice porridge popular in many Asian countries. It can be eaten alone or served with a side dish. Names for congee are as varied as the style of its preparation...
  
  , the Vietnamese version of congee or rice porridge
• Chào
  Hello
  Hello is a salutation or greeting in the English language. It is attested in writing as early as the 1830s.-First use:Hello, with that spelling, was used in publications as early as 1833. These include an 1833 American book called The Sketches and Eccentricities of Col...
  
  , a Vietnamese greeting of saying hello