- 1
A full-grown animal, plant, or person has reached their adult size and will not get bigger. A full-grown cat is as large as that cat will get; a full-grown oak is a tree, not a . You are talking about the body, not about skill or job. A child can be clever and still not full-grown; a full-grown man can still be new at his work. It is ordinary, slightly descriptive English — fine in speech and in writing about nature, farming, or people. American English uses full-grown a lot; fully-grown is the same idea and is common too, especially in British English.
長成的、成年的（指體型，不是指本事）
組成From Middle English fulgrowen / ful growe, equivalent to full + grown. Old English had fullweaxen with the same meaning.
同家族的字
- growthe verb this is built from
- grownthe past participle: already finished growing
- fully-grownthe same idea; often the British form
原始詞典資料2 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。
full-grownadj/ˈfʊlˌɡɹoʊn/
- 1
Fully developed; adult.
- 2
Fully developed in a broader sense; complete, at one’s height.
- Near-synonyms: full-fledged, full-blown, full-bore, full-on
- […] And, doubtless, unto thee is given A life that bears immortal fruit In such great offices as suit The full-grown energies of heaven.
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。