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In grammar, apposition is when two noun phrases sit next to each other and both point to the same person or thing, with no “and” or “or” between them. In “The defendant, a woman of thirty, denies kicking the policeman,” the phrases “the defendant” and “a woman of thirty” are in apposition: they are two ways of naming the same person. The second phrase usually adds extra information, and in writing it often has around it, like a quiet aside. You can take that second phrase out and the sentence still works. Teachers also talk about a tighter kind, with no : “my friend Mina” — here Mina tells you which friend. Apposition is a classroom word. In real life you use the pattern all the time without naming it. It is not a list (apples, oranges), and it is not a clause with who or which (the woman who is thirty).
同位語（文法）
組成From Middle English apposicioun, from Middle French apposition, from Latin appositiō, from appōnere (“to put near”): ad- + ponere. In grammar, the two phrases are placed next to each other.
同家族的字
- appositesame Latin root of “placing next to”
原始詞典資料8 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。
appositionnoun/ˌæpəˈzɪʃn̩/
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grammarhuman-scienceslinguisticsA construction in which one noun or noun phrase is placed with another as an explanatory equivalent, both of them having the same syntactic function in the sentence.
- The apposition in the title has been read as indicating that ‘Hobson-Jobson’ is equivalent to ‘colloquial Anglo-Indian words and phrases’.
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grammarhuman-scienceslinguisticsThe relationship between such nouns or noun phrases.
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The quality of being side by side, apposed instead of opposed, next to each other.
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A placing of two things side by side, or the fitting together of two things.
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biologynatural-sciencesThe growth of successive layers of a cell wall.
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Appositio, the addition of an element not syntactically required.
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A public disputation by scholars.
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A (now purely ceremonial) speech day at St Paul's School, London.
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。