Each language, in the vocabulary system in general and the verb vocabulary system in particular, troponymy is one of the most important types of semantic relationships. The troponymy is one of the important semantic relations of the Vietnamese verb lexical system. The article is about some methods of defining words in Vietnamese dictionaries today. First of all, the article briefly summarizes definition methods in general and the using of the hypernym method in particular. Then, the article describes the word definition of the activity of going, seing… Thereby, the author wants to give an opinion on a way to define the meaning of words through từ bao (hypernym) và từ cách (troponym)
Keywords: hyponym, semantic relationships, troponym, troponymy