eng Science and Education Publishing American Journal of Educational Research 2327-6150 2020-02-02 8 2 66 70 10.12691/education-8-2-1 EDUCATION2020821 article Huong Do Thi Thu dothuhuong@hpu2.edu.vn 1 William H.Salazar 2 Faculty of Philology, Hanoi Pedagogical University #2, Xuan Hoa town, Vinh Phuc Province, Vietnam Faculty of Foreign Languages, Hanoi Pedagogical University #2, Xuan Hoa town, Vinh Phuc Province, Vietnam An Idiom is a unit in the lexical system, it is like an uninterrupted river, always flowing, moving, changing and developing. During significant socio-cultural changes in society, people add idioms and eliminated old idioms almost simultaneously. This paper analyzed some popular Vietnamese idioms. This analysis utilized a survey questionnaire that was administered to two groups: Older adults (over the age of 30) and younger people. This paper analyzed three main idiom groups, and is divided into three categories: Recently created Vietnamese - of which did not have American English equivalent - idioms, and idioms that are disappearing and idioms that have disappeared idioms from current communication. Based on survey findings from these three idiom groups, this paper illustrated ¡°rules¡± of how recently created idioms and archaic Vietnamese idioms were formed. This paper also briefly discusses the socio-cultural nuances in which idioms became standard use. Furthermore this paper offers timely recommendations on how to collect new idioms and why it is important to preserve old idioms. http://pubs.sciepub.com/education/8/2/1/education-8-2-1.pdf idioms new idioms old idioms Vietnamese idioms American idioms translation of idioms