1. Mathematics A regular solid having six congruent square faces.
a. Something having the general shape of a cube: a cube of sugar.
b. A cubicle, used for work or study.
3. Mathematics The third power of a number or quantity.
4. cubes Slang Cubic inches. Used especially of an internal combustion engine.
tr.v. cubed, cub·ing, cubes
1. Mathematics To raise (a quantity or number) to the third power.
2. To determine the cubic contents of.
3. To form or cut into cubes: The cook cubed some potatoes.
4. To tenderize (meat) by breaking the fibers with superficial cuts in a pattern of squares.
[French, from Latin cubus, from Greek kubos. N., sense 2b, short for CUBICLE.]
(click for a larger image)cube
To calculate the volume of a cube, multiply the length of an edge of the cube by itself twice. The volume of this cube is 125 cubic feet.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.