那群人就是「大家」
框架完全一樣，只是填進去的那群人換成所有人，於是對照的對象從「外行人」變成「官方名稱」。
noun · C2
Used in the phrase 'in common parlance' to say that this is what ordinary people call something, rather than its official or technical name.
一般人的說法
核心畫面
Think of a room where a group of people talk to each other all day — a hospital, a courtroom, a fishing harbour, a game chat. Over time their words settle into a set that fits their work. Parlance is a name for that set: how these people say things. Almost every time you meet the word today it is doing one job — handing you a term out of one of those rooms and telling you whose room it came from.
parlance 可以想成一個房間裡的人整天講話的樣子。醫院、法庭、漁港、遊戲聊天室，各有各的房間。時間久了，他們的…更多收起
parlance 可以想成一個房間裡的人整天講話的樣子。醫院、法庭、漁港、遊戲聊天室，各有各的房間。時間久了，他們的用字會定下來，變成一整套屬於自己的講法。parlance 就是這整套講法的名字。今天你遇到這個字，它幾乎都在做同一件事：把一個詞從某個房間裡拿出來遞給你，順便說明它是誰的詞。From the word’s history
Parlance came from Anglo-Norman parlance, built from parler 'to talk' plus the ending -ance. Its literal sense is simply 'the talking' — a name for how speaking is done rather than for any one word.
parlance 來自盎格魯-諾曼語，由 parler（說話）加上字尾 -ance 組成，字面就是「說話這件事」。可以想成：這個字從一開始講的就不是某一個詞，而是「怎麼開口」這整件事。
Wiktionary entry 'parlance' (kaikki extract, source_ref kaikki:3f6f69a190036ae4:1020633051): Middle English *parlaunce < Anglo-Norman parlance < parler + -ance.
From the picture
Also in this word
noun · C2
A way of speaking: the words and phrases a particular group of people use, especially the ones tied to their work, their place or their interests.
說法／用語
noun · C2
Used in the pattern 'in ... parlance' to say that the words being quoted are the ones a particular group of people — a job, a trade, an army, a sport — use among themselves.
（某行業的）說法