Vietnamese has 6 different meanings across 3 categories:
Noun · Adjective · Proper Noun
a native or inhabitant of Vietnam
"The local restaurant was filled with vietnamese customers enjoying traditional pho."
the Mon-Khmer language spoken in Vietnam
"She spoke fluent Vietnamese while visiting her family in Hanoi."
An inhabitant of Vietnam, person of Vietnamese descent.
"The local community welcomed the new arrivals and shared their traditional cuisine with the visiting Vietnamese families."
In plain English: A Vietnamese is someone who comes from Vietnam or has that country as their home.
"We ordered two special vietnamese pho bowls for lunch today."
of or relating to or characteristic of Vietnam or its people or its language
"the Vietnamese countryside"
"the Vietnamese tones"
"Vietnamese boat people"
Of or pertaining to Vietnam.
"The Vietnamese people have a rich history and culture deeply rooted in their homeland."
In plain English: Vietnamese describes anything that comes from Vietnam, such as its people, language, food, or culture.
"The Vietnamese women in our neighborhood often greet each other politely when they meet on the street."
The Austroasiatic language spoken predominantly in Vietnam.
"The ancient poem was translated from Vietnamese to English by a renowned linguist."
The word comes from Vietnam combined with the suffix -ese. It originally meant a person or thing from Vietnam.