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(ˈkoʊ tʃɪn-, ˈkɒtʃ ɪn-)

a former state in S French Indochina: now part of Vietnam. French.
References in classic literature ?
He looked thoughtfully at the chart as if surveying chances and distances from a lofty height--and follow- ing with his eyes his own figure wandering on the blank land of Cochin-China, and then passing off that piece of paper clean out of sight into uncharted regions.
The export of rice from Cochin-china to China and Hong Kong during the colonial period is not mentioned (p.
As Saigon, it was the capital of the French colony of Cochin-china and later of the independent republic of South Vietnam, from 1955 to 1975.