Synonyms of mat
1
a(1)
: a piece of coarse, woven, plaited, or felted fabric used especially as a floor covering or a support
(2)
: a piece of material placed at a door for wiping soiled shoe soles
b
: a decorative piece of material used under a small item (such as a dish) especially for support or protection
c
: a large thick pad or cushion used as a surface for wrestling, tumbling, and gymnastics
2
: something made up of densely tangled or adhering filaments or strands especially of organic matter
an algal mat
a mat of unkempt hair
3
: a large slab usually of reinforced concrete used as the supporting base of a building
see also:

mat

2 of 9

verb (1)

matted; matting

transitive verb

1
: to provide with a mat or matting
2
a
: to form into a tangled mass
dirt and filth matted her hair
b
: to pack down so as to form a dense mass

intransitive verb

: to become matted
matted; matting

transitive verb

1
or less commonly matte or matt : to make (something, such as a metal, glass, or color) matte
2
: to provide (a picture) with a mat

mat

4 of 9

adjective (1)

less common spelling of matte entry 2

: lacking or deprived of luster (see luster entry 1 sense 1) or gloss: such as
a
: having a usually smooth even surface free from shine or highlights
matte metals
a matte finish
b
: having a rough or granular (see granular sense 1) surface

mat

5 of 9

noun (2)

: a border going around a picture between picture and frame or serving as the frame

mat

6 of 9

noun (3)

matte

7 of 9
variants or matt

variant spellings of mat entry 3 sense 1

variants or less commonly mat or matt
: lacking or deprived of luster (see luster entry 1 sense 1) or gloss: such as
a
: having a usually smooth even surface free from shine or highlights
matte metals
a matte finish
b
: having a rough or granular (see granular sense 1) surface
1
: a crude mixture of sulfides formed in smelting sulfide ores of metals (such as copper, lead, or nickel)
2
: a movie effect in which part of a scene is blocked out and later replaced by footage containing other material (such as a background painting)

Examples of mat in a Sentence

Adjective (2) a photograph with a matte finish I chose a paint with a matte finish so the walls wouldn't be too shiny.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
While the other children played with blocks and crayons, sitting at their tables, Karuna just wanted to lie on a mat in the corner of the room. — Raj Panjabi, Time, 13 Oct. 2026 These suites are equipped with essentials like Peloton bikes, free weights, yoga mats, Normatec leg compression devices, and Theraguns. — Condé Nast, Condé Nast Traveler, 13 Oct. 2026
Verb
We were seated in front of a gigantic blue screen, where the landscape would be matted in later. — Kyle MacLachlan, HollywoodReporter, 29 Sep. 2026 Aware of them now, the dog shakes loose the can—his forelock matted, his jowl smeared with beans—and shrinks into the trees with a whimper that makes something tighten in Molly’s own chest. — Literary Hub, 3 Sep. 2026
Adjective
Choose from mat Pilates, Pilates with special equipment (like a reformer), or other class styles to suit you. — Sohaib Imtiaz, Verywell Health, 14 Mar. 2025
Adjective
The finish is a semi-matte—smooth, satin, and shine-free—that looks looks like velvet on the lips. — Kiana Murden, Vogue, 6 Oct. 2026 Its 85-inch QLED display features a highly matte anti-glare screen, so your art and movies look lifelike without annoying reflections. — Juhi Wadia, PC Magazine, 11 Mar. 2026
Noun
The goal was to increase the wear to 36 hours, update it with product technology such as an oil-controlling AlgaNiacin complex leveraged from its skin care labs, and offer a more natural matte finish. — Noor Lobad, Footwear News, 9 Oct. 2026 Her highlighted brunette tresses were styled in a side part with subtle waves, while her glam consisted of shimmery champagne eyeshadow, rosy blush, and a matte nude lip. — Hannah Malach, InStyle, 9 Oct. 2026 See All Example Sentences for mat

Word History

Etymology

Noun (1)

Middle English, from Old English meatte, from Late Latin matta, of Semitic origin; akin to Hebrew miṭṭāh bed

Noun (2)

French mat dull color, unpolished surface, from mat, adjective — more at matte

Adjective (2)

French mat, from Old French, faded, defeated

Noun

French, from Middle French, crude metal, curdled milk, from feminine of mat thick, dull, matte

First Known Use

Noun (1)

before the 12th century, in the meaning defined at sense 1a(1)

Verb (1)

1549, in the meaning defined at transitive sense 1

Verb (2)

1602, in the meaning defined at sense 1

Noun (2)

1845, in the meaning defined above

Noun (3)

1904, in the meaning defined above

Adjective (2)

circa 1648, in the meaning defined above

Noun

1839, in the meaning defined at sense 1

Time Traveler
The first known use of mat was before the 12th century

Browse Nearby Words

Cite this Entry

“Mat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mat. Accessed 16 Oct. 2026.

Kids Definition

1
a
: a piece of coarse fabric of rush, straw, or wool
b
: a piece of material in front of a door to wipe dirty shoe soles on
c
: a decorative piece of material used under a dish or vase
d
: a pad or cushion for gymnastics or wrestling
2
: something made up of many tangled strands
a thick mat of vegetation

mat

2 of 5 verb
matted; matting
1
: to provide with a mat or matting
2
: to become or cause to become a tangled mass
matted; matting
1
also matte or matt : to give a dull effect to
2
: to border (a picture) with a mat

mat

4 of 5

variant of matte entry 2

mat

5 of 5 noun
1
: a border of stiff paper (as cardboard) going around a picture between picture and frame or serving as the frame
2
: a dull finish
Etymology

Noun

Old English meatte "mat," from Latin matta (same meaning); of Semitic origin

Medical Definition

mat

1 of 2 adjective
variants or matt or matte
1
: lacking or deprived of luster or gloss : having a usually smooth even surface free from shine or highlights
2
: having a coarse rough rugose or granular surface
bacteria that form mat colonies on agar

mat

2 of 2 noun
: a mat colony of bacteria
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