代だい理り大たい使し

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Meanings

1

noun

chargé d'affaires

A diplomat who temporarily heads an embassy in the absence of the ambassador. The term is used in formal and diplomatic contexts.

substitute, change, convert

理logic, arrangement, reason

大large, big

使use, send on a mission, order

大たい使し
大使 is a full ambassador, while 代理大使 is a temporary head of mission, often a senior diplomat acting in the ambassador's absence.
臨りん時じ代だい理り大たい使し
臨時代理大使 is a more specific term for a chargé d'affaires ad interim, often used in formal diplomatic correspondence.

Compound of 代理 (dairi, 'representation, proxy') and 大使 (taishi, 'ambassador'). The term is a direct translation of the French 'chargé d'affaires'.