把人叫到一起的人
這一支就是畫面本身：負責讓一場正式會議真的開得成的那個人。
noun · C1
The person who arranges a formal meeting: the one who calls the members together and settles when and where they will meet.
召集人
核心畫面
Picture a room that is empty, and one person with a list of names who has to fill it. They pick the day, they send the notice, they find the room, and at ten o'clock everyone walks in. That single job, getting scattered people into one place at one time, is what the name is built on. It is not a rank; nobody has to obey a convener. They are simply the person without whom the meeting would not happen.
convener 可以想成一個空著的房間，還有一個手上拿著名單、負責把它填滿的人。他挑日子、發通知、找場地，到了十點…更多收起
convener 可以想成一個空著的房間，還有一個手上拿著名單、負責把它填滿的人。他挑日子、發通知、找場地，到了十點，大家一個一個走進來。整個字就架在這一件事上：把分散在各處的人，弄到同一個時間、同一個地方。它不是一個位階，沒有人要聽召集人的話。他只是那個「少了他，這場會就開不成」的人。From the word’s history
The source gives the word as convene plus -er: convene is to call people together, and -er names the person who does it, an ending the source traces back through Middle English to Old English -ere.
來源直接說 convener 是 convene 加 -er 組成的。convene 是「把人召集到一起」，-er 是「做這件事的人」，這個字尾可以一路追到古英語的 -ere。所以這個字的意思幾乎就寫在組成裡，不必另外記。
Wiktionary entry for convener, packet source_ref kaikki:3f6f69a190036ae4:1391945465:4637
Two branches
工廠裡的工會代表（英式）
同一個畫面換到工廠裡。廠場中有事情要決定時，把工人叫到一起的就是這個人，所以名字沿用得下來。來源標明這是英式英語的用法。
noun · C1
In British English, an important trade union official at a factory or office: the union's senior person among the workers at that workplace.
工會廠場代表