grow up

== English == === Etymology === Dissimilated from Middle English upgrowen. === Pronunciation === === Verb === grow up (third-person singular simple present grows up, present participle growing up, simple past grew up, past participle grown up) (intransitive) To mature and become an adult. (intransitive) To start to develop; to flourish. (intransitive, idiomatic) To stop acting as or like a child (often used as an imperative interjection). ==== Synonyms ==== (to mature): age, upgrow; see also Thesaurus:to age (to start to develop): blossom, prosper ==== Derived terms ==== grown up ==== Translations ==== === Interjection === grow up (imperative) Used to criticize childish behavior, especially that considered unreasonable for one's age. === Anagrams === upgrow