Tonkinese noun 2adjective 1forms 1 noun2 •A domestic cat of a breed that is a cross between the Siamese and Burmese.Do not consider bringing home a Tonkinese unless you have time in your life for games[…] — 2001 •[in the plural] A person from Tonkin. adjective1 •Of or relating to Tonkin, the northern part of Vietnam. formsTonkineses