(Cockney rhyming slang) The London Underground rail network.

(chess, informal) A situation in which four of one player's pawns are positioned on adjacent files and adjacent ranks forming a 2x2 square.

(mathematics) An integer that is the product of three instances of another integer; equivalently, it is the product of an integer and its square.

Synonym of Rubik cube. A generic term for the Rubik's Cube type puzzles / Used other than figuratively or idiomatically: see puzzle, cube. / a cubic puzzle

(mathematics, obsolete) The sixth power of a number.

(freight, of a shipping container, attributive) Being 1 foot taller than the usual height.

present participle of cube out

simple past tense and past participle of cube out

(slang) Morphine used as a recreational drug.

plural of ice cube tray