The Vietnamese word "đá bóng" is a verb that means "to play football" (or "to play soccer" in some countries). It is a common activity enjoyed by many people, especially in Vietnam.
Tôi thích đá bóng vào cuối tuần.
(I like to play football on the weekends.)
Họ đang đá bóng ở sân bóng đá.
(They are playing football at the football ground.)
"Đá bóng" is an essential term for anyone interested in football in Vietnam.