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Polysemy is the name for that fact: one word, several related meanings. It is the noun that sits beside the adjective . Language teachers use it when they explain why a “simple” word like run or get can fill a whole dictionary page. The meanings usually grew from one older sense, the way a tree grows branches. Though actually, experts sometimes argue where polysemy ends and a truly different word begins; for a , the useful point is just this: do not grab the first meaning you know and force it into every sentence. You will see the word in language class and in books about words, not in everyday chat.
多義、多義性（一個詞有幾個相關意思）
組成From polyseme + -y. A polyseme is a word with several meanings; -y names that fact.
同家族的字
- polysemousthe adjective: a word that has several related meanings
- polysemethe word itself when we treat it as “one form, several senses”
- semanticshares the Greek root for meaning / signs
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。
polysemynoun/ˈpɒ.lɪ.siː.mi/
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human-scienceslinguisticssciencesThe quality characteristic of a polyseme, a sign (such as a word or symbol) that has multiple meanings (senses), often including multiple similar ones.
- Fifty years ago the linguist and semanticist Stephen Ullmann wrote that polysemy, the fact that some words have a network of multiple but related meanings, is "the pivot of semantic analysis" […]
- Polysemy proliferates in natural language: Virtually every word is polysemous to some extent.
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。