UnscrambleTheWord.cocastle
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Is castle a Scrabble word?
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- Scrabble US/Canada (OTCWL) Yes
- Scrabble UK (SOWPODS) Yes
- Wordle No
- Words With Friends Yes
Scrabble US/Canada (OTCWL) 
Wordle 
Words With Friends What is the meaning of castle?
Definition
noun (English)
1. (chess) An instance of castling.
2. (chess, informal) A rook; a chess piece shaped like a castle tower.informal
3. (shogi) A defense structure in shogi formed by defensive pieces surrounding the king.
4. (obsolete) A close helmet.Examples: "The castle was perhaps a figurative name for a close headpiece deduced from its enclosing and defending the head, as a castle did the whole body; or a corruption from the Old French word casquetel, a small or light helmet."obsolete
5. (dated) Any strong, imposing, and stately palace or mansion.dated
6. (dated) A small tower, as on a ship, or an elephant's back.dated
verb (English)
1. (transitive) To house or keep in a castle.Examples: "...to encastle, to Castle."; "...Some fierce tribe, castled on the mountain-peak..."Synonyms: castellate, incastellatetransitive
2. (transitive, figurative) To protect or separate in a similar way.Examples: "Castle me in the armes of thy everlasting strength."figurativelytransitive
3. (obsolete) To make into a castle: to build in the form of a castle or add (real or imitation) battlements to an existing building.Synonyms: fortifyobsolete
4. (usually intransitive, chess) To move the king 2 squares right or left and, in the same turn, the nearest rook to the far side of the king. The move now has special rules: the king cannot be in, go through, or end in check; the squares between the king and rook must be vacant; and neither piece may have been moved before castling.Examples: "He [i.e., the king] may change (or Castle) with this Rooke, that is, he may goe two draughts at once towards this Rooke... causing the Rooke to stand next to him on either side."; "No. 24. ¶ If your adversary make a false move, castle improperly, &c., you must take notice of such irregularity before you move, or even touch a piece, or you are no longer allowed to inflict any penalties."; "If a player having the move: […] touches his/her king and a rook he/she must castle on that side if it is legal to do so"intransitiveusually
5. (usually intransitive, shogi) To create a similar defensive position in Japanese chess through several moves.intransitiveusually
6. (cricket) To bowl a batsman with a full-length ball or yorker such that the stumps are knocked over.Examples: "And the 23-year-old brought the crowd to their feet when he castled Gayle's stumps, signalling the direction of the pavilion to his friend for good measure."; "He bowled Vinay with a full, straight ball that castled off stump and then dished up a yorker that RP Singh backed away to and sent onto his stumps."
name (English)
1. (countable) A surname transferred from the common noun referring to someone who lived in or worked in a castlecountable
2. (UK, rail transport) Castle class, a class of steam locomotives used on the GWRUKcountableuncountable
3. (UK, Durham University slang) University College, Durham, a constituent college located in Durham CastleUKcountableuncountable
Definition source: Wiktionary