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Tonkin

American  
[ton-kin, tong-] / ˈtɒnˈkɪn, ˈtɒŋ- /
Also Tongking

noun

  1. a former state in northern French Indochina, now part of Vietnam.

  2. Gulf of Tonkin, an arm of the South China Sea, west of Hainan. 300 miles (485 km) long.


Tonkin British  
/ ˈtɒŋˈkɪŋ, ˈtɒnˈkɪn /

noun

  1. a former state of N French Indochina (1883–1946), on the Gulf of Tonkin: forms the largest part of N Vietnam

  2. an arm of the South China Sea, bordered by N Vietnam, the Leizhou Peninsula of SW China, and Hainan Island. Length: about 500 km (300 miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012