expression, godan verb (-su)
exercise one's ingenuity; devise an ingenious plan
Used when someone puts careful thought and creativity into solving a problem or making something better. Often implies a deliberate, clever effort.
彼は狭い部屋を広く見せるために、いろいろと工夫を凝らした。
He exercised his ingenuity in various ways to make the small room look spacious.
この料
This dish is a special menu item that the chef devised with great ingenuity.