1 Duke - the head of a duchy; in the UK, dukes are the most senior nobles. 2  Marquess. 3  Earl. Outside of the English-speaking world, the title is referred to as Count. 4  Viscount. 5  Baron - the most junior of noble titles.
Ethnic Khmer living in Thailand, in Vietnam, and in Laos speak dialects of Khmer that are more or less intelligible to Khmer speakers from Cambodia. Minority languages include Vietnamese, Cham, several dialects of Chinese, and the languages of the various hill tribes.
Khmer Krom, or Southern Khmer, is the first language of the Khmer of Vietnam while the Khmer living in the remote Cardamom mountains speak a very conservative dialect that still displays features of the Middle Khmer language. Khmer is primarily an analytic, isolating language.