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grown·up

grown-up

 
pronunciation:
gron uhp
part of speech: adjective
definition 1: having become an adult.
Now that my sister is grown-up, she has an apartment of her own.
synonyms:
adult, grown, mature
similar words:
big
definition 2: of or meant for adults.
The grown-up talk at my parents' dinner party was boring.
synonyms:
adult, mature
antonyms:
childish