内部 (ないぶ, naibu) Japanese meaning: interior | Kotomoraは
とても
広
かっ
た
。
The interior of the building was very spacious.
Internal information was leaked to the outside.
Usage patterns
〈場所〉の内部を調べるto inspect the interior of a place
The police inspected the interior of the building.
内部で〈事〉が起こるfor something to happen internally (within an organization or system)
A conflict is occurring within the company.
内部に立ち入るto enter a restricted interior area
Unauthorized people are not allowed to enter the interior.
内部から〈動詞〉to do something from the inside (as opposed to externally)
It's necessary to reform the organization from within.
内部 is a more formal, technical word for 'interior', used for machines, organizations, or structures, whereas 中 is the everyday word for 'inside'.