castle

From Wiktionary
Wikipedia logo
Wikipedia logo
The Simple English Wikipedia has an article on:

Pronunciation[change]

Noun[change]

Singular
castle

Plural
castles

  1. (countable) A castle is a large, strong building used to protect the people inside.
    In the Middle Ages, castles were used to protect the king and queen.
  2. (countable) In chess, the castle is another name for the rook.

Verb[change]

Plain form
castle

Third-person singular
castles

Past tense
castled

Past participle
castled

Present participle
castling

  1. (intransitive) In chess, to castle is to take a turn that involves both the rook and the king moving at once.
    I was going to win if he hadn't decided to castle.