noun
rook
ROOK/rʊk/
A chess piece that moves horizontally or vertically.
The rook can travel straight along either the board's ranks or files.

Etymology
Persian rukh was a name for the chess piece, but its original meaning is unknown. It may be connected with an Indian piece-name derived from a word meaning “chariot.”
In context
the Turk counter-attacks by snatching the master's rook and putting in a check
More examples
- Each player starts the game with two rooks.
- Her rook controls the open file.
- Castling moves the king and a rook in one turn.
Forms
rook · rooks
Similar words
- castle
- An informal name for the rook, referring to its tower shape.