nội bộ

nội bộ points to what stays inside a group, organization, or sometimes a country: internal matters, internal rules, or affairs not meant for outsiders. You’ll often see it after a noun, as in patterns like “Noun + nội bộ,” where it describes something handled within an institution. But nội bộ is not only an adjective. It can also work as a noun for a group’s internal situation, and in the right context it can contrast with international matters. The lesson also helps you avoid mixing it up with bên trong, nội tại, and nội địa. Watch the full lesson to see how this useful word works naturally in Vietnamese.