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A commissionaire is someone who stands at the door of a hotel or theatre in a uniform and helps people — holding the door, calling a taxi, checking you look as if you belong. It is mainly British and Commonwealth English; in American English people say . The job has a slightly old, slightly grand feel: a long coat, brass buttons, a cap. In Britain and Canada there is also a Corps of Commissionaires, often older ex-soldiers working as uniformed guards, so the word can stretch from “theatre door” to “uniformed attendant.” You would not use it for a shop greeter in jeans.
穿制服的門房、門僮（飯店或劇院大門）
組成Borrowed from French commissionaire, from Latin commissio (a task given to someone). It is a sister word of commissioner: same Latin parent, different trip into English.
同家族的字
- commissionerdoublet: same Latin source (commissio), but a commissioner is an official, not a doorman
- commissionthe task or body that the Latin word named; this person was originally “someone given a commission”
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
commissionairenoun/kəˌmɪʃəˈnɛː/
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One entrusted with a (small) commission, such as an errand; especially, an attendant or subordinate employee in a public office, hotel, etc.
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A uniformed doorman.
- When the day came Nick turned up early at the bank and waited under a palm tree in the atrium. People hurried in, nodding to the commissionaire, who still wore a tailcoat and a top hat.
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lawAn undisclosed agent under European civil law.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。