Einreiseerlaubnis

Official permission to enter a country; כמעט the same meaning as the primary term, but a bit more formal and precise.

Visa; the most common and concrete term for entry permission, though not every entry permit is necessarily a visa.

Permission to enter a place; usually used for buildings, events, or restricted areas, not for crossing a national border.

Residence permit; not for entry itself, but for legally staying in a country for a longer period.

Work permit; related to the right to work in a country, not to entering it.

Pass, transit permit, or clearance slip; used for restricted zones, checkpoints, or special routes, not for entering a country.

Official permission; a very general term that can include entry permission, but is less precise on its own.

Access or entry; refers to the act or right of being allowed in, not to the permit document itself.

Border crossing; this is the act of crossing the border, not the permission itself, though it often involves entry documents.