邊緣（實體與地位）
最貼近字根的一支：margin 當「邊」本身用——紙的邊、土地水域的邊，乃至比喻上「處在邊邊、沒什麼份量」的位置。
page margin · noun · C2
The empty space along the edge of a page, next to the writing.
頁邊空白
核心畫面
You can picture the blank strip running around the edge of a page, outside the block of writing — the border of empty space where the text stops and the paper's edge begins.
可以想成一張紙上，文字區塊外圍那一圈留白：字排到這裡就停了，剩下到紙邊之間那條空白的邊帶，就是 margin。
From the word’s history
Margin comes from Latin margo (marginem) 'edge, brink, border.' The oldest sense is simply a border or edge — the page-edge picture — and the other meanings all grow from that idea of the edge, or of the extra strip sitting at the edge.
margin 來自拉丁文 margo（marginem）「邊、緣、邊界」。最早的意思就是「邊界、邊緣」——也就是頁邊那個畫面；其他義項全都從「邊緣」，或「邊緣多出來那條帶子」這個概念長出來。
etymonline.com/word/margin
Three branches
差距（兩量之間的差）
從「邊」轉到「兩條邊之間的距離」：一邊贏、一邊輸，中間那段差就是 margin；買價與賣價之間那段差也是。
winning margin · noun · C2
The amount by which one side wins or loses a game, vote, or election.
差距
餘裕·容錯
把「邊上多出來那條帶子」想成刻意留的緩衝：需要的量之外，額外留的一段時間、金錢、空間，讓事情就算有偏差也還撐得住。
safety buffer · noun · C2
An extra amount of time, money, or space that you add to make sure something works out.
餘裕
原始詞典資料12 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。
marginnoun/ˈmɑː.d͡ʒɪn/
- 1
mediapublishingtypographyThe edge of the paper, typically left blank when printing but sometimes used for annotations etc.
- 2
The edge or border of any flat surface.
- Nothing could be more business-like than the construction of the stout dams, and nothing more gently rural than the limpid lakes, with the grand old forest trees marshalled round their margins like a veteran army that had marched down to drink, only to be stricken motionless at the water’s edge.
- The lobule margins, furthermore, are arched away from the lobe, with the consequence that (when fully inflated) the abaxial leaf surface forms the interior lining of the lobule.
- 3
The edge defining inclusion in or exclusion from a set or group.
- As far as space is concerned, Mary Lamb finds herself at the farthest margin of society - among tramps - when the novel begins.
- 4
A difference or ratio between results, characteristics, scores.
- margin of victory
- Chelsea will point to that victory margin as confirmation of their superiority - but Spurs will complain their hopes of turning the game around were damaged fatally by Atkinson's decision.
- 5
A permissible difference; allowing some freedom to move within limits.
- margin of error
- 6
businessfinanceThe yield or profit; the selling price minus the cost of production.
- 7
businessfinanceCollateral security deposited with a broker, to compensate the broker in the event of loss in the speculative buying and selling of stocks, commodities, etc.
- The purchaser then hands over this margin to the person with whom he hypothecates the Stock.
- If you borrow from your broker via trading on margin, you need to add monthly margin interest charges to your trading costs as well.
- 8
That which is ancillary; periphery.
- This model merely nips at the margins.
另外 1 個記錄的用法
- 9
biologybotanynatural-sciencesThe shape of the edge of a leaf.
- Red Whortleberry leaves have a crenate margin.
marginverb/ˈmɑː.d͡ʒɪn/
- 1
To add a margin to; to furnish with a margin.
- The scale-like feathers of the breast are margined with rich metallic blue-green, which colour entirely covers the throat and sides of the neck, as well as the long pointed plumes which spring from the sides of the breast, and extend nearly as far as the end of the wings.
- 2
To enter (notes etc.) into the margin.
- 3
businessfinanceTo trade (securities etc.) on margin (collateral).
- This sounds easy, but bear in mind that margined portfolios decline faster than cash portfolios in a bear market.
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。