move the king two squares toward a rook and in the same move the rook to the square next past the king
interchanging the positions of the king and a rook
a large building formerly occupied by a ruler and fortified against attack
(chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
a large and stately mansion
KNOT
a unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude
something twisted and tight and swollen; "their muscles stood out in knots"; "the old man's fists were two great gnarls"; "his stomach was in knots"
a hard cross-grained round piece of wood in a board where a branch emerged; "the saw buckled when it hit a knot"
tie or fasten into a knot; "knot the shoelaces"
tangle or complicate; "a ravelled story"
make into knots; make knots out of; "She knotted her fingers"
a sandpiper that breeds in the Arctic and winters in the southern hemisphere
any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
soft lump or unevenness in a yarn; either an imperfection or created by design
a tight cluster of people or things; "a small knot of women listened to his sermon"
TIE
neckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front; "he stood in front of the mirror tightening his necktie"; "he wore a vest and tie"
fasten or secure with a rope, string, or cord; "They tied their victim to the chair"
a cord (or string or ribbon or wire etc.) with which something is tied; "he needed a tie for the packages"
connect, fasten, or put together two or more pieces; "Can you connect the two loudspeakers?"; "Tie the ropes together"; "Link arms"
a horizontal beam used to prevent two other structural members from spreading apart or separating; "he nailed the rafters together with a tie beam"
unite musical notes by a tie
one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
make by tying pieces together; "The fishermen tied their flies"