1. A chess opening in which a player develops a bishop by moving the b-pawn (or g-pawn) forward and placing the bishop on the long diagonal.
Usage: chess term; Italian origin

1. To execute a fianchetto opening in chess; to develop a bishop via the fianchetto setup.
Usage: chess term; transitive or intransitive

Examples

• White played a fianchetto on the kingside, placing the bishop on g2.
• The fianchetto is a popular opening strategy in modern chess.
• She decided to fianchetto her bishop rather than develop it to e2.
• Black responded to White's fianchetto with a solid center.
• The fianchetto setup gives the bishop control of the long diagonal.
• He fianchettoed both bishops in an unconventional opening.