mop
1 Americannoun
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a bundle of coarse yarn, a sponge, or other absorbent material, fastened at the end of a stick or handle for washing floors, dishes, etc.
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a thick mass of hair.
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a polishing wheel having several layers of cloth secured by a boss.
verb (used with object)
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to rub, wipe, clean, or remove with a mop (often followed byup ).
to mop up a spill.
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to wipe as if with a mop.
to mop the face with a handkerchief.
verb (used without object)
verb phrase
idioms
verb (used without object)
noun
noun
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an implement with a wooden handle and a head made of twists of cotton or a piece of synthetic sponge, used for polishing or washing floors, or washing dishes
-
something resembling this, such as a tangle of hair
verb
verb
noun
noun
Etymology
Origin of mop1
First recorded in 1375–1425; earlier map, late Middle English mappe, shortening f mappel, from Medieval Latin mappula, mappa “handtowel, cloth,” equivalent to Latin mapp(a) “napkin” + -ula -ule
Origin of mop2
First recorded in 1450–1500 for the noun, and in 1560–70 for the verb; perhaps akin to Dutch moppen “to mutter, pout”
Explanation
A mop is a tool for cleaning a floor. Most mops have a long handle and a sponge or bundle of absorbent strings on one end. If someone says that your hair looks like a mop, that's not a compliment. When you use a mop, you mop the floor. Mops can be used dry, but more often they're dunked in a soapy bucket of water before they mop the floor. You can also "mop up" a mess or a spill, even if you're using a cloth, a sponge, or a paper towel instead of a mop. The earliest mops were used to clean ships' decks, and the word comes from the Latin mappa, "napkin."
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.
Fordo tunnels are thought to be 80m to 90m below the surface, so the MOP is not guaranteed to be successful, but it is the only bomb that could come close.
From BBC • Jun. 21, 2025
The MOP Foundation, after her initials, in November opened an exhibition of photos by renowned fashion photographer Steven Meisel.
From Reuters • Mar. 31, 2023
For his next record, Jones took his pal’s advice and proceeded to throw on one of the hardest hip-hop songs in the genre’s arsenal: “Ante Up” by MOP.
From Washington Post • Nov. 25, 2022
Kara Wolters won a second straight tournament MOP award.
From Fox News • Feb. 26, 2020
MOP: Are you sure you want to try out for the eighth-grade team?
From "The Epic Fail of Arturo Zamora" by Pablo Cartaya
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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.