dreamcastle

noun
UK /ˈdriːmˌkɑːsəl/
US /ˈdriːmˌkæsəl/

A dreamcastle is a big pretend castle you build in your imagination.

At bedtime, Mia built a dreamcastle with towers made of clouds.


OTHER MEANINGS

2. A castle that appears in a dream while you are asleep.

In her dream, she wandered through a dreamcastle full of singing birds.

3. A grand, unrealistic plan or hope that someone keeps in their mind.

His plan to buy a whole island was just a dreamcastle.

4. A toy or model castle used for imaginative play.

The kids stacked blocks into a dreamcastle for their toy knights.