1
: having the form of a cube : cubical
2
a
: relating to the cube considered as a crystal form
3
b
: being the volume of a cube whose edge is a specified unit
cubic inch
4
: of third degree, order, or power
a cubic polynomial
: a cubic curve, equation, or polynomial
Examples of cubic in a Sentence
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John Shumway, CBS News, 11 Feb. 2026
Its internal bay offers 24 cubic feet of space, giving planners flexibility to tailor each vehicle to a specific task.
—Sujita Sinha, Interesting Engineering, 10 Feb. 2026
Calvin Finch, San Antonio Express-News, 30 Jan. 2026
The Ioniq 5 has practical, sufficient cargo space, 27.2 cubic behind the rear seats, 59.3 cubic feet when the seats are folded flat.
—James Raia, Mercury News, 6 July 2025
See All Example Sentences for cubic
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Adjective
That is measured and charged per thousand cubic feet.
—John Shumway, CBS News, 11 Feb. 2026
Its internal bay offers 24 cubic feet of space, giving planners flexibility to tailor each vehicle to a specific task.
—Sujita Sinha, Interesting Engineering, 10 Feb. 2026
Noun
If my math is accurate, 1 cubic yard of compost will provide enough top dressing for 650 square feet of lawn.
—Calvin Finch, San Antonio Express-News, 30 Jan. 2026
The Ioniq 5 has practical, sufficient cargo space, 27.2 cubic behind the rear seats, 59.3 cubic feet when the seats are folded flat.
—James Raia, Mercury News, 6 July 2025
See All Example Sentences for cubic
Cite this Entry
“Cubic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cubic. Accessed 14 Feb. 2026.
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