Thai is a tonal language - that is the tone used to pronounce a word can change its meaning. Thai has five tones -- low, middle, high, rising and falling. For example, the word 'mai' in a falling tone means 'not' but at the end of a sentence with a high tone it indicates a question.
Postcolonialism or postcolonial studies is an academic discipline that analyzes, explains, and responds to the cultural legacy of colonialism and imperialism. Postcolonialism speaks about the human consequences of external control and economic exploitation of a native people and its lands.
Colonialism is a relationship between an indigenous (or forcibly imported) majority and a minority of foreign invaders. The fundamental decisions affecting the lives of the colonized people are made and implemented by the colonial rulers in pursuit of interests that are often defined in a distant metropolis.