This is the 184th most frequent Vietnamese word.
tổng
"Total" or "general."
Here, 'tổng' is used as a noun meaning 'total', referring to the sum or whole number.
Tổng số học sinh trong lớp là ba mươi.
The total number of students in the class is thirty.
In this sentence, 'tổng' is used as a prefix combining with 'giám đốc', indicating the overarching or top position in management.
Anh ấy được bầu làm Tổng giám đốc của công ty.
He was elected as the General Director of the company.
Here, 'tổng hợp' means 'to summarize', showing 'tổng' in a verb form combined with 'hợp', meaning to collect or bring together.