This is the 622nd most frequent Vietnamese word.
qatar
The word "Qatar" is not Vietnamese; it refers to the country Qatar in English, the same as in Vietnamese.
Qatar is used as a proper noun, referring to the country.
Tôi muốn du lịch đến Qatar vào mùa đông.
I want to travel to Qatar in the winter.
Qatar is used as an adjective to indicate the nationality or origin of the football team.
Đội bóng đá Qatar đã thi đấu rất hay trong giải đấu quốc tế.
The Qatar football team played very well in the international tournament.
Qatar is used as an attributive noun to describe the origin or style of the carpet.