noun
safe-conduct pass; passport guaranteeing safe passage
A document or certificate that guarantees the holder safe passage, often used in historical, diplomatic, or military contexts.
中世の旅人は安全通行証を携えて危険な地域を通過した。
Medieval travelers carried a safe-conduct pass to cross dangerous regions.
大使は敵地を通過するための安全通行証を発行してもらった。
The ambassador was issued a safe-conduct pass to travel through enemy territory.
Compound of 安全 (safety) + 通行 (passage) + 証 (certificate). The term is transparently derived from its components.