おお 大きくなる Common word Show inflections LinksSentence search for 大きくなるSentence search for おおきくなるKanji details for 大Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to grow up; to become an adultExpressions (phrases, clauses, etc.), Godan verb with 'ru' ending2. to become big; to grow in size Discussions Log in to talk about this word.