grown-up ( grown-ups plural )
The spelling grownup is also used. The syllable up is not stressed when it is a noun.
1 n-count A grown-up is an adult; used by or to children.
Tell children to tell a grown-up if they're being bullied.
2 adj Someone who is grown-up is physically and mentally mature and no longer depends on their parents or another adult.
I have grown-up children who're doing well.
3 adj If you say that someone is grown-up, you mean that they behave in an adult way, often when they are in fact still a child.
usu v-link ADJ
She's very grown-up.
4 adj Grown-up things seem suitable for or typical of adults.
Her songs tackle grown-up subjects..., She talked in a grown-up manner.
Translation English Cobuild Collins Dictionary
adj adult, fully-grown, mature, of age
English Collins Dictionary - English synonyms & Thesaurus
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