The official national language of Vietnam is Vietnamese (Tiếng Việt), a tonal Mon–Khmer language which is spoken by the majority of the population. In its early history, Vietnamese writing used Chinese characters. In the 13th century, the Vietnamese developed their own set of characters, referred to as Chữ Nôm, that is widely used in classic literature. Quốc ngữ, the romanized Vietnamese alphabet used for spoken Vietnamese, was developed in the 17th century by the Jesuit Alexandre de Rhodes and several other Catholic missionaries. Quốcngữ became widely popular and brought literacy to the Vietnamese masses during the French colonial period.
Vietnam’s minority groups speak a variety of languages, including Tày, Mường, Cham, Khmer, Chinese, Nùng, and H’Mông. The Montagnard culture of the Central Highlands also speaks a number of distinct languages. A number of sign languages have developed in the cities. The French language, a legacy of colonial rule, is spoken by many educated Vietnamese as a second language, especially among the older generation and those educated in the former South Vietnam, where it was a principal language in administration, education, and commerce; Vietnam remains a full member of the Francophonie and education has revived some interest in the language. Russian – and to a much lesser extent German, Czech and Polish – are known among some Vietnamese whose families had ties with the Soviet bloc during the Cold War. In recent years, as Vietnam’s contacts with Western nations have increased, English has become more popular as a second language. English as a school subject is obligatory in most schools by now,  replacing French. Chinese, Japanese and Korean have also grown in popularity as Vietnam’s links with other East Asian nations have strengthened.
Below, we translated the most important words and phrases while travelling in Vietnam in simplified phonetics:
Vietnamese                                                          English
Sin chow                                                               Hello (or hi)
Kwherekhom                                                          How are you?
Toy kwhere, cam un                                               I’m fine, thank you
Cam un                                                                 Thank you
Ten la zee                                                              What is your name?
Ten toy la…                                                            My name is…
Bao new toy                                                           How old are you?
Toy…too-ee                                                            I am…years old
…Bao new                                                              How much is…?
Mukkwar                                                                It’s too expensive!
Kom                                                                      No
Ya(south), vang(north)                                             Yes
Sin loy                                                                   Excuse me / I’m sorry
Kom can                                                                No need
Cam un, noong toy kom can too-ee nee long          Thank you, but I don’t need a plastic bag