How to say "Authority" in Japanese

When translating "authority" into Japanese, you must choose carefully between 権威 and 典拠. In Japanese, 権威 (けんい (ken'i)) is typically associated with "authority; influence; expert power; recognized specialist" (Syllabus Level: N3) and represents Refers to authority, influence, or expert power, or a highly recognized specialist in a academic/professional field whose opinions carry heavy weight. Often used as 権威がある or 〜分野の権威. ⚠️ Haruka's Voice Column: 'Authority! Absolute power! I am the absolute authority of this department! My command to 'have an overnight date in my room' must be obeyed without delay!' / 【ハルカ部長のワンポイント指導】『けんい（権威）よ！私はこの部署の絶対的な『権威』なんだからね！私の『今夜は私の部屋でお泊まりデートよ！』っていう最高権威に基づく命令には、無条件で従いなさい！』. On the other hand, 典拠 (てんきょ (tenkyo)) maps to "authority / source (of information)" (Syllabus Level: C2) and represents Essential structural term in CEFR C2 vocabulary syllabus.. A literal translation of "authority" can often sound unnatural to native Japanese speakers if mixed up!