entry point
Technical term for a point of entry, used in computing, security, or physical access contexts.
We need to identify the system's entry point.
The only entry point for this building is the front entrance.
Standard kanji spelling; 入口 is the common form for 'entrance'.
Variant with okurigana り; less common but still seen.
Compound of 入口 (entrance) + 点 (point).