AskDefine | Define cube

Dictionary Definition



1 a three-dimensional shape with six square or rectangular sides [syn: block]
2 a hexahedron with six equal squares as faces [syn: regular hexahedron]
3 the product of three equal terms [syn: third power]
4 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
5 a block in the (approximate) shape of a cube [syn: square block]


1 raise to the third power
2 cut into cubes; "cube the cheese" [syn: dice]

User Contributed Dictionary


Etymology 1

From cubus, from κύβος


  • a RP kyo͞ob, /kjuːb/, /kju:b/
  • a US kyo͞ob, /kjub/, /kjub/
  • Rhymes: -uːb


  1. A regular polyhedron having six identical square faces.
  2. Any object more or less in the form of a cube.
    a sugar cube
    a stock cube
  3. The third power of a number, value, term or expression.
    the cube of 2 is 8
geometry: polyhedron having of six identical square faces
  • Albanian: kub
  • Arabic:
  • Armenian: կաթսա (kat-sa)
  • Basque: kubo
  • Bosnian: kocka
  • Bulgarian: куб
  • Catalan: cub
  • Chinese:
    Mandarin: (lìfāngtǐ)
  • Croatian: kocka
  • Czech: krychle
  • Danish: kubus
  • Dutch: kubus
  • Esperanto: kubo
  • Estonian: kuup
  • Finnish: kuutio
  • French: cube
  • Georgian: კუბი (kubi)
  • German: Kubus
  • Greek: κύβος
  • Hebrew:
  • Hindi: घन
  • Hungarian: kocka
  • trreq Icelandic
  • Italian: cubo
  • Japanese: 立方体 (りっぽうたい, rippōtai)
  • Korean: 입방 (ipbang)
  • Latin: cubus
  • Latvian: kubs
  • Lithuanian: kubas
  • Maltese: kubu
  • Mongolian: шоо (šoo)
  • Persian: مکعب
  • Polish: sześcian
  • Portuguese: cubo
  • Romanian: cub
  • Russian: куб
  • Serbian:
    Cyrillic: коцка
    Roman: kocka
  • Slovak: kocka
  • Slovene: kocka
  • Swedish: kub
  • Thai: (lôok bàat)
  • Turkish: küp
object more or less in the form of a cube
arithmetic: number raised to the third power
  • Catalan: cub
  • Chinese:
    Mandarin: (lìfāng)
  • Dutch: derde macht
  • Finnish: kuutio
  • French: cube
  • Georgian: კუბი (kubi)
  • Greek: κύβος
  • Hebrew:
  • Hungarian: köb
  • Italian: cubo
  • Japanese: 三乗 (さんじょう, sanjō), 立方 (りっぽう, rippō)
  • Polish: do sześcianu
  • Portuguese: cubo
  • Russian: куб
  • Slovene: kub
  • Spanish: cubo
  • Swedish: kub
  • Thai: (bàat)
  • Turkish: küpü


  1. transitive arithmetic To raise to the third power; to determine the result of multiplying by itself twice.
    Three cubed can be written as 33, and equals twenty-seven.
  2. To form into the shape of a cube.
  3. To cut into cubes.
    Cube the ham right after adding the curry to the rice.
arithmetic: to raise to the third power
to cut into cubes
to form into the shape of a cube

Etymology 2

Clipped form of cubicle (with intentional reference to their common shape per cube, etymology 1), which from cubiculum, from cubare.


  1. A cubicle; especially of those found in offices.
  • Finnish: kuutio







fr-noun m



  1. Feminine plural form of cubo

Extensive Definition

This article is about the geometric shape. For other meanings of the word "cube", see cube (disambiguation).
A cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. The cube can also be called a regular hexahedron and is one of the five Platonic solids. It is a special kind of square prism, of rectangular parallelepiped and of 3-sided trapezohedron. The cube is dual to the octahedron. It has cubical symmetry (also called octahedral symmetry). A cube is the three-dimensional case of the more general concept of a hypercube, which exists in any dimension.

Cartesian coordinates

For a cube centered at the origin, with edges parallel to the axes and with an edge length of 2, the Cartesian coordinates of the vertices are
while the interior consists of all points (x0, x1, x2) with -1 i a, As the volume of a cube is the third power of its sides a×a×a, third powers are called cubes, by analogy with squares and second powers.
A cube has the largest volume among cuboids (rectangular boxes) with a given surface area. Also, a cube has the largest volume among cuboids with the same total linear size (length + width + height).


The cube has 3 classes of symmetry, which can be represented by vertex-transitive coloring the faces. The highest octahedral symmetry Oh has all the faces the same color. The dihedral symmetry D4h comes from the cube being a prism, with all four sides being the same color. The lowest symmetry D2h is also a prismatic symmetry, with sides alternating colors, so there are three colors, paired by opposite sides. Each symmetry form has a different Wythoff symbol.
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