緝毒的那一邊
這是最常見的租客，也是字典擺第一個的意思：narcotics officer 砍短之後剩下的那個殼。
noun · C1
A police officer, or a government agent, whose job is to deal with illegal drugs and the people who sell them.
緝毒警察
核心畫面
One way to hold narc: it is a shell left behind when English chops a long word down to its first syllable. Narcotics officer becomes narc. Narcosis becomes narc. becomes narc. And a separate old word for an , nark, drifted into the same spelling. So the four letters are not one meaning with branches; they are one short sound that several different words have moved into. The one you meet first, and the one the dictionaries lead with, is the drugs officer. For the rest, the words standing next to it are what tell you which tenant is at home: police and crime, or depth and diving, or somebody who only talks about themselves.
可以想成：narc 是一個殼。英文習慣把長字砍到只剩第一個音節，砍完剩下的就是這個殼。narcotics offic…更多收起
可以想成：narc 是一個殼。英文習慣把長字砍到只剩第一個音節，砍完剩下的就是這個殼。narcotics officer 砍成 narc，narcosis 砍成 narc，narcissist 也砍成 narc。另外還有一個本來就存在的老字 nark（眼線），後來也漂進了同一個拼法。所以這四個字母不是一個意思長出很多分支，而是好幾個不同的字搬進了同一個短音。最常遇到、字典也擺第一個的，是緝毒警察。其餘的要靠旁邊的字判斷：講警察和犯罪、講深度和潛水，還是講一個只談自己的人。From the word’s history
The packet's source gives four separate origins under this one spelling: a clipping of narcotics (control) officer; an alternative spelling of nark, influenced by that first word; a clipping of narcosis; and a clipping of narcissist.
來源在同一個拼法底下給了四個不同的來歷：narcotics (control) officer 的縮短；nark 的另一種拼法，寫成 narc 是受了前面那個字影響；narcosis 的縮短；以及 narcissist 的縮短。
Wiktionary entries supplied in this packet (kaikki:3f6f69a190036ae4:801846001, :801848318, :801851066, :801853816)
Three branches
通風報信的那一邊
同一個場景的另一邊：一邊是收到消息的警察，一邊是把消息送過去的人。這一支的來歷其實是另一個字 nark，只是拼法被 narc 拉了過去。
verb · C1
To tell the police secretly about what someone else has been doing wrong, especially anything to do with illegal drugs.
告密；向警方檢舉
潛水氮醉
跟前兩支沒有意義上的關係，只是同一個殼：這次砍短的是 narcosis。
verb · C2
In diving, to start thinking slowly and judging badly because of the nitrogen you breathe deep under water.
（潛水）氮醉；因氮而神智不清
原始詞典資料5 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。
narcnoun詞源 1/ˈnɑːk/
- 1
informaldrugsmedicinepharmacologyA police officer or federal agent assigned to or engaging in illegal narcotics control.
narcverb詞源 3/ˈnɑːk/
- 1
slangdivinghobbieslifestyleTo suffer from impaired judgment due to nitrogen narcosis (for example, while scuba diving).
narcnoun詞源 4/ˈnɑːk/
- 1
informalA narcissist.
這個拼法也被記錄為下列字的變化形：
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。