A castle is a big, strong house from long ago. Kings or soldiers lived there for safety. It has walls and towers.
The king lived in a big castle.
We visited an old castle last week.
In chess, castle means to move the rook and king for safety. This helps protect the king from attacks.
He did castle to protect his king.
Castle is a smart move in chess.
As a verb, castle means to move the rook and king in chess to protect the king. It is a special action you can do once per game.
He castles to keep his king safe.
You can castle once per game.
Sometimes, castle means a place where valuable things are kept safe. This meaning is old and rare today.
The castle held the kingdom's gold.
Old castles stored precious treasures.
In machines, a castle is a type of nut with gaps to hold a pin. This helps keep parts fixed and safe.
The mechanic checked the castle nut.
Secure the castle with a pin.
Sometimes, castle means a strong home made by animals like ants or bees. It means their safe place.
The ants built a castle underground.
Bees live in their castle hive.
People sometimes call their home a castle as a way to say it is safe and private. It means a place they like and feel protected.
Welcome to my castle, please come in.
Everyone needs a castle to feel safe.
