# cube

In math, a cube is a number multiplied by itself three times. The cube of 2 is 8 (2 x 2 x 2). It is also a three-dimensional shape where each of the six sides is a square or something shaped like a cube, such as an ice cube or meat cut into cubes).

The noun cube goes back to the Greek word kybos, which was a six-sided die used in games. As a verb, cube means to cut into cube shapes. You can buy cookie dough that is ready for baking and formed into cubes. Place each cube on the cookie sheet, and the dough becomes a dozen round cookies — or fewer if you pop a cookie dough cube into your mouth before baking!

## Primary Meanings of cube

 1 nv a hexahedron with six equal squares as faces cut into cubes 2 nv the product of three equal terms raise to the third power 3 n any of several tropical American woody plants of the genus Lonchocarpus whose roots are used locally as a fish poison and commercially as a source of rotenone
Full Definitions of cube
1

### n a hexahedron with six equal squares as faces

Synonyms:
regular hexahedron
Types:
tesseract
the four-dimensional analogue of a cube
quadrate
a cubelike object
Type of:
Platonic body, Platonic solid, ideal solid, regular convex polyhedron, regular convex solid, regular polyhedron
any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent

### n a three-dimensional shape with six square or rectangular sides

Synonyms:
block
Types:
goldbrick
a brick-shaped block that looks like gold but is not
Type of:
solid
a three-dimensional shape

### n a block in the (approximate) shape of a cube

Synonyms:
square block
Types:
show 6 types...
hide 6 types...
dice, die
a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers
ice cube
a small cube of artificial ice; used for cooling drinks
five, five-spot
a playing card or a domino or a die whose upward face shows five pips
four, four-spot
a playing card or domino or die whose upward face shows four pips
one-spot
a domino or die whose upward face shows one pip
six, six-spot
a playing card or domino or die whose upward face shows six pips
Type of:
block
a solid piece of something (usually having flat rectangular sides)

### v cut into cubes

cube the cheese”
Synonyms:
dice
Type of:
cut
separate with or as if with an instrument
2

### n the product of three equal terms

Synonyms:
third power
Type of:
number
a concept of quantity involving zero and units

### v raise to the third power

Type of:
multiply
combine by multiplication
3

### n any of several tropical American woody plants of the genus Lonchocarpus whose roots are used locally as a fish poison and commercially as a source of rotenone

Type of:
subshrub, suffrutex
low-growing woody shrub or perennial with woody base

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