Definition of "castle-building" [castle-building]

• The act of building castles. (noun)
• Especially, building castles in the air; day-dreaming. (noun)

The Century Dictionary (Public Domain)

• "While millions of kids will construct sand creations all summer for nothing, sand advisers have built practices charging individuals and companies for sand castle-building classes, as well as partnering with charities that sponsor sand-sculpting competitions."
• "At the same time, as Mr. Goodall emphasizes, even the most forbidding fortresses had also been intended as homes: Given the strains of his job, King John needed somewhere to relax, and his castle-building schemes included comfortable living quarters at Portchester, one of his favorite residences."
• "If castle-building was in your blood, eventually you'd come to love more durable materials apt to make your dream come true."