ダイカツヤク
Meanings
Noun
Verb (する)
1. being very active; being very useful; playing a very active part; making a spectacular showing; great efforts; splendid work
Composed of
large; big; great; prominent; -sized; as big as; university
activity (esp. energetic); great efforts; conspicuous service; to flourish; to participate actively; to play an active role