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To delimit something is to mark, clearly and on purpose, where it starts and where it stops. You can delimit a border on a map, delimit a research topic (this paper will only look at…), or delimit a period of time. It is a formal, academic, and technical word. Everyday limit often means don't let it get too big, or there is a cap. Delimit is closer to drawing the line itself so everyone can see the edges. You will meet it in law, geography, science, and official reports more than in conversation.
劃定（範圍／界限）、界定
組成From French délimiter, from Late Latin dēlīmitō (“to mark out the limits”), from dē- + līmitō (“to limit, to bound”). The English piece you can see is limit.
同家族的字
- limitthe bound you are marking out; the Latin piece līmitō
- delimitationthe noun: the act of delimiting, or the edges as drawn
- delimiterin computing, a mark that shows where one piece of data ends and the next begins
原始詞典資料1 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。
delimitverb/dɪˈlɪmɪt/
- 1
To mark or fix the limits of.
- Near-synonyms: (literal) demarcate; (figurative) limit, constrain
- Data items in the computer file were delimited by commas.
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。