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  • mat
    mat
    noun
    a piece of fabric made of plaited or woven rushes, straw, hemp, or similar fiber, or of some other pliant material, as rubber, used as a protective covering on a floor or other surface, to wipe the shoes on, etc.
  • mat.
    mat.
    abbreviation
    matins.
  • M.A.T.
    M.A.T.
    abbreviation
    Master of Arts in Teaching.
Synonyms

mat

1 American  
[mat] / mæt /

noun

  1. a piece of fabric made of plaited or woven rushes, straw, hemp, or similar fiber, or of some other pliant material, as rubber, used as a protective covering on a floor or other surface, to wipe the shoes on, etc.

  2. a smaller piece of material, often ornamental, set under a dish of food, a lamp, vase, etc.

  3. Sports.

    1. the padded canvas covering the entire floor of a wrestling ring, for protecting the contestants from injury when thrown.

    2. a thick pad placed on the floor for the protection of tumblers and others engaged in gymnastic sports.

  4. a thickly growing or thick and tangled mass, as of hair or weeds.

  5. a sack made of matting, as for coffee or sugar.

  6. Building Trades.

    1. a slablike footing of concrete, especially one for an entire building.

    2. a heavy mesh reinforcement for a concrete slab.


verb (used with object)

matted, matting
  1. to cover with or as if with mats or matting.

  2. to form into a mat, as by interweaving.

verb (used without object)

matted, matting
  1. to become entangled; form tangled masses.

idioms

  1. go to the mat, to contend or struggle in a determined or unyielding way.

    The president is going to the mat with Congress over the proposed budget cuts.

mat 2 American  
[mat] / mæt /

noun

  1. a piece of cardboard or other material placed over or under a drawing, painting, photograph, etc., to serve as a frame or provide a border between the picture and the frame.


verb (used with object)

matted, matting
  1. to provide (a picture) with a mat.

mat 3 American  
[mat] / mæt /

adjective

matted, matting
  1. matte.


mat 4 American  
[mat] / mæt /

noun

Printing.
  1. the intaglio, usually of papiermâché, impressed from type or a cut, from which a stereotype plate is cast.

  2. matrix.


mat. 5 American  

abbreviation

  1. matins.

  2. maturity.


M.A.T. 6 American  

abbreviation

  1. Master of Arts in Teaching.


mat 1 British  
/ mæt /

noun

  1. a thick flat piece of fabric used as a floor covering, a place to wipe one's shoes, etc

  2. a smaller pad of material used to protect a surface from the heat, scratches, etc, of an object placed upon it

  3. a large piece of thick padded material put on the floor as a surface for wrestling, judo, or gymnastic sports

  4. a Māori cloak

  5. to abandon urban civilization

  6. any surface or mass that is densely interwoven or tangled

    a mat of grass and weeds

  7. the solid part of a lace design

    1. a heavy net of cable or rope laid over a blasting site to prevent the scatter of debris

    2. a heavy mesh of reinforcement in a concrete slab

    3. (esp US) a steel or concrete raft serving as a footing to support a post

  8. civil engineering short for mattress

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to tangle or weave or become tangled or woven into a dense mass

  2. (tr) to cover with a mat or mats

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
mat 2 British  
/ mæt /

noun

  1. a border of cardboard, cloth, etc, placed around a picture to act as a frame or as a contrast between picture and frame

  2. a surface, as on metal or paint

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. having a dull, lustreless, or roughened surface

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to furnish (a picture) with a mat

  2. to give (a surface) a mat finish

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
mat 3 British  
/ mæt /

noun

  1. informal printing short for matrix

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mat. 4 British  

abbreviation

  1. matinée

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mat More Idioms  

Other Word Forms

Etymology

Origin of mat1

First recorded before 900; Middle English mat(te), Old English matt, matta, matte, from Late Latin matta “mat (of rushes),” from a Semitic language; compare Phoenician maṭṭa, Hebrew miṭṭāh “bed”

Origin of mat2

First recorded in 1845–50; apparently mat 1, influenced by matte 1

Origin of mat4

First recorded in 1920–25; shortened form of matrix

Explanation

When you walk into someone else's house, it's polite to wipe your feet on the mat — the pad that covers part of the floor inside the front door. A mat is a kind of floor covering, often smaller than a rug or carpet. You might buy a sea grass mat to put in your bedroom, or a door mat for your apartment entryway. You can also use the word mat as a verb, to mean tangle or snarl: "The dog managed to mat the fur on his belly by rolling around on the beach." The Old English matte came from the Latin word matta, "mat made of rushes."

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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.

See Examples For:

Medics whisked him to safety, gave him a pain blocker, and placed him in a bed with a recessed, plush mat that molded to his body.

From Slate ● Sep. 22, 2026

WSJ | Buy Side: This stone bath mat is absorbent and quick-drying.

From The Wall Street Journal ● Sep. 2, 2026

I took a mat next to the American black bears and American badgers, only slightly jealous that the mats next to the large-scale walrus diorama were taken.

From Los Angeles Times ● Aug. 28, 2026

"The guinea pig stood on what appeared to be a very thick mat of mud which I believe to be very old, ground down, compacted faeces."

From BBC ● Aug. 14, 2026

How did you finish a reed mat, for example?

From "A Girl Named Disaster" by Nancy Farmer

“He told me to go to the back of the building and next to the dumpster there would be a rubber mat. Look under it,” she recalls him telling her.

From Salon ● Jul. 26, 2025

"You know, we're lucky that we have access to shelter. They have fans in there and we get a mat. So that helps a lot."

From BBC ● Jul. 18, 2023

“I did a lot of laying on the mat. I felt like I was a top athlete, but they destroyed me.”

From New York Times ● Apr. 25, 2023

“Leave it on the mat. You’re an amazing son.”

From Washington Post ● Jul. 30, 2021

Henry Howard, Earl of Surry, the poet; great, good, and accomplished, and fell a victim to envy = as physical heir of his mat. grandfather. | | 1st Dau.

From Notes and Queries, Number 75, April 5, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by Various

Insurers are starting to pressure providers to use medication assisted treatment, or M.A.T.

From New York Times ● Dec. 29, 2018

She didn’t see the people I knew who were now stabilized on M.A.T. and getting their kids and jobs back.

From New York Times ● Jul. 20, 2018

M.A.T. and J.W.M.G. performed and analysed worm experiments under the supervision of J.M.A.T.;

From Nature ● Nov. 28, 2017

The committee urged that even greater stress be placed on a full doctoral program, rather than the M.A.T.

From Time Magazine Archive

Charlie Sands, who is on a newspaper, calls us either the "M.A.T." or the "B.A.'s," for "Beloved Aunts," although Aggie and I are not related to him.

From Tish by Mary Roberts Rinehart

However, many dogs were found with "matted and crusted coats" that required treatment.

From BBC ● Apr. 9, 2026

The schoolhouse is a dull, matted red, as are other architectural elements.

From The Wall Street Journal ● Oct. 31, 2025

The job was messy because recent rains had created a muddy scene for the volunteers who had to collect the bunnies, most of which had matted fur.

From Los Angeles Times ● Mar. 4, 2024

As erosion slows, marsh and streamside vegetation is rebounding and putting down densely matted root systems that can increasingly stand firm against flooding, or surging waves.

From Science Daily ● Jan. 31, 2024

Each monster was about the size of a cow, with a bowed back like a broken-down horse, matted gray fur, skinny legs, and black cloven hooves.

From "The House of Hades" by Rick Riordan

The UAW said grievances have been filed about problems with ventilation fans, ergonomic matting, personal protective equipment, flooding, basement lighting, oil leaks and other issues.

From Seattle Times ● May 6, 2024

Rabbit adopters must perform perpetual grooming to keep the rabbit’s fur from matting and must keep a close eye on the bunnies’ diet and poops.

From Los Angeles Times ● Mar. 4, 2024

An England XI featuring Nasser Hussain and Alec Stewart lost by three runs chasing 177 in Amstelveen in 1989 on a sodden matting pitch.

From BBC ● Nov. 7, 2023

Families pick the type of frame and matting and then a professional framer gets started.

From New York Times ● Oct. 8, 2022

Rain matting the hair over his collar, forming a little pool in the space between his boots.

From "Jazz" by Toni Morrison

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