A quorum is the smallest number of people who must be present before a meeting can make official decisions. If not enough people come, you can still talk, but you cannot vote or pass a rule — you do not have a quorum. A club, a school board, a company board, a parliament: each group sets its own number in its rules.

A quorum is指的是 the smallest number of people最少人數 who must be present必須到場的 before a meeting can make official decisions一場會議要能做出正式決定之前的。If not enough people come如果來的人不夠, you can still talk你們還是可以講話, but you cannot vote or pass a rule但不能投票，也不能通過規定 — you do not have a quorum就是沒有達到quorum。A club, a school board, a company board, a parliament社團、校務委員會、公司董事會、國會: each group sets its own number in its rules每個組織都在自己的規章裡訂出自己的人數。

It is a formal, meeting-room word. You would not use it for “enough friends to start the game,” though the idea is close.

It is a formal, meeting-room word這是一個正式的、開會場合才會用的字。You would not use it for你不會拿它來說 "enough friends to start the game,"「湊夠朋友來開始遊戲」 though the idea is close雖然概念很接近。

Though actually, the word did not start as “a number.” It was clipped from old legal Latin that named the people who had to sit on a body: “of whom we want you to be one.” The “of whom” bit came off and became the name for “enough of the right people to decide.”

Though actually不過其實, the word did not start as "a number."這個字一開始不是指「一個數字」。It was clipped from old legal Latin它是從古老的法律拉丁文裡截來的 that named the people who had to sit on a body那句話原本是在指稱那些必須出席某個機構的人: "of whom we want you to be one."「of whom we want you to be one」（我們希望你是其中之一的那些人）。The "of whom" bit came off後面「of whom」那部分被砍掉 and became the name for剩下的就變成了 "enough of the right people to decide."「足夠的合適人選來做決定」的名字。