信任状|しんにんじょうshinninjou

1. nouncredentials

• Relatedお墨付きおすみつきNeutralAn endorsement from an authority; stresses the weight of the guarantor, as in 「専門家のお墨付き」. More colloquial than 「信任状」.
• Related証明書しょうめいしょNeutralA general document certifying that something is true; broader in scope than the diplomatic 「信任状」.
• Related認可証にんかしょうWrittenA written term for a license or charter; it proves that approval was granted, not diplomatic identity.
• Related認定証にんていしょうWrittenA written term for a certificate confirming that qualification requirements are met; used differently from 「信任状」.

Use 「信任状」 for the document a diplomat presents to prove identity and authority, as in 「信任状を奉呈する」. For general proof use 「証明書」; for an authority's endorsement 「お墨付き」; 「認可証」 and 「認定証」 are written terms for licenses and certifications.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 外交官がいこうかんや使者ししゃが、自分じぶんの身分みぶんや権限けんげんを証明しょうめいするために持もつ公式こうしきな書類しょるい。