cube

/kju:b/
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cube

A child builds a tower with colorful wooden cubes.

Definition

  1. Noun:

    • A solid three-dimensional shape with six equal square faces: A geometric figure where all sides are squares of the same size, meeting at right angles.
    • The product of a number multiplied by itself twice: The result of raising a number to the third power (e.g., the cube of 2 is 8).
    • A block or piece in the shape of a cube: Any object, often of food or material, that roughly has the form of a cube.
    • A tropical American plant (genus Lonchocarpus): A woody plant whose roots are used as a fish poison and a source of rotenone.

  2. Verb:

    • To cut something into small cube-shaped pieces: To slice food, such as vegetables or cheese, into cubes.
    • To raise a number to the third power: To multiply a number by itself twice (e.g., to cube 3 is to calculate 3 x 3 x 3 = 27).
Examples of Usage

  • Noun:

    • Children learn about three-dimensional shapes like the cube and sphere in geometry.
    • The cube of 5 is 125.
    • Please add some ice cubes to my drink.
    • The chemist extracted a compound from the cube plant.

  • Verb:

    • Could you cube the potatoes for the stew?
    • If you cube 10, you get 1000.
Advanced Usage

  • "Cube root": The number which, when cubed, gives the original number.

    • The cube root of 64 is 4.

  • "Sugar cube": A small, cube-shaped portion of compressed sugar.

    • She dropped a sugar cube into her tea.

  • "Cube farm" (informal): An office space divided into many small cubicles.

    • He works in a noisy cube farm downtown.
Variants and Related Words

  • Cubic (adj): Having the shape of a cube; related to volume measured in cubes.

    • The room has a cubic shape.
    • The volume is measured in cubic meters.

  • Cuboid (n/adj): A three-dimensional rectangular shape; similar to a cube but with rectangular faces.

    • The box is a cuboid.

  • Cubical (adj): Shaped like a cube; relating to a small partitioned space (cubicle).

    • The data center is filled with cubical server racks.
Synonyms
  • Block (n): A solid piece of material with flat sides.
  • Die (n): A small cube with spots used in games.
  • Dice (v): To cut into small cubes (synonymous with the verb 'cube' in cooking).
Related Phrases (Phrasal Verbs)
  • Cube off: To divide or mark an area into cube-like sections. (Less common)
    • The architect cubed off the open plan into individual workspaces.
Related Idioms

  • A cube of sugar: Refers literally to a sugar cube, but can imply something small and sweet.

    • His compliment was just a cube of sugar in her bitter day.

  • To be a square peg in a round hole / a cube in a sphere: (Variation) To be a person who does not fit into a particular situation or role.

    • His artistic mind made him feel like a cube in a sphere at the corporate meeting.
cube

A child builds a tower with colorful wooden cubes.

Noun
  1. a block in the (approximate) shape of a cube
  2. 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
  3. the product of three equal terms
  4. a three-dimensional shape with six square or rectangular sides
  5. a hexahedron with six equal squares as faces
Verb
  1. cut into cubes
    • cube the cheese
  2. raise to the third power

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