a man's home is his castle
A proverbial expression of personal privacy and security.
castle
UK /ˈkɑːsəl/ US /ˈkɑːsəl/
noun 5verb 5name 5
Definitions
noun
1
A large residential building or compound that is fortified and contains many defences; in previous ages often inhabited by a nobleman or king. Also, a house or mansion with some of the architectural features of medieval castles.
2
An instance of castling.
3
A rook; a chess piece shaped like a castle tower.
4
A defense structure in shogi formed by defensive pieces surrounding the king.
5
A close helmet.
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.
verb
1
To house or keep in a castle.
...to encastle, to Castle.
...Some fierce tribe, castled on the mountain-peak...
2
To protect or separate in a similar way.
Castle me in the armes of thy everlasting strength.
3
To make into a castle: to build in the form of a castle or add (real or imitation) battlements to an existing building.
4
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
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.
5
To create a similar defensive position in Japanese chess through several moves.
name
1
A surname transferred from the common noun referring to someone who lived in or worked in a castle
2
Castle class, a class of steam locomotives used on the GWR
3
The first part of the name of certain nuclear tests by the US: Castle Bravo, Castle Romeo, Castle Yankee etc. See Operation Castle.
4
University College, Durham, a constituent college located in Durham Castle
5
A place name:
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