math
1 Americannoun
noun
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a mowing; a leveling or cutting down of grass, grain, etc., with a mowing machine or scythe.
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the crop mowed.
noun
abbreviation
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mathematical.
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mathematician.
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mathematics.
noun
abbreviation
Etymology
Origin of math1
First recorded in 1845–50; by shortening
Origin of math2
First recorded before 900; Middle English (bede)-mad, a kind of manorial duty to mow for one's lord, Old English mǣth “mowing, hay harvest”; cognate with German Mahd, Old Frisian mēth, Old Saxon mād(dag) “mowing (day)”; cf. aftermath, mow 1, mow 2
Origin of math3
First recorded in 1825–35; from Hindi maṭh, from Sanskrit maṭha “hut, cottage, cell, monastery”
Explanation
Math is the science of numbers. You may start out learning addition and subtraction in math, and then end up years later tackling multivariable implicit differentiation problems. Say what?! Math is the common, shortened form of mathematics, which comes from the Greek mathematike tekhne, "mathematical science," from the root mathema, "knowledge or science." Math is one of the basic subjects that are covered in nearly every school, from basic addition to calculus. If someone says, "Do the math," they usually mean, "Just think about it — it's so obvious."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“The District currently recommends that students complete approximately 45 minutes of English Language Arts and Math personalized learning lessons on the i-Ready platform weekly,” the resolution states.
From Los Angeles Times • May 19, 2026
Havens was also going to start a nonprofit organization called Math Haven to make math more accessible to the public and students in high school.
From Slate • May 2, 2026
Appeared in the April 14, 2026, print edition as 'Los Angeles Schools Can’t Do Math'.
From The Wall Street Journal • Apr. 13, 2026
Matsumoto’s mother is of Korean descent and is principal at Hawthorne Math and Science Academy.
From Los Angeles Times • Apr. 1, 2026
Cara said, “Well, you’re right, it’s mostly sports, but there’s some other stuff there, too—Writer of the Month awards, and Math Club honors—all sorts of things. And there’s one plaque for Teacher of the Year.”
From "The Landry News" by Andrew Clements
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.