noun, verb, mat⋅ted, mat⋅ting.| 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.
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| 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. | a slablike footing of concrete, esp. one for an entire building. |
| 7. | a heavy mesh reinforcement for a concrete slab. |
| 8. | to cover with or as if with mats or matting. |
| 9. | to form into a mat, as by interweaving. |
| 10. | to become entangled; form tangled masses. |
| 11. | 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. |

adjective, noun, verb, mat⋅ted, mat⋅ting.| 1. | having a dull or lusterless surface: matte paint; a matte complexion; a photograph with a matte finish. |
| 2. | a dull or dead surface, often slightly roughened, as on metals, paint, paper, or glass. |
| 3. | a tool for producing such a surface. |
| 4. | Metallurgy. an unfinished metallic product of the smelting of certain sulfide ores, esp. those of copper. |
| 5. | Movies. matte shot. |
| 6. | to finish with a matte surface. |
mat 2 (māt) n.
Having a dull finish. [From French, dull, from Old French, defeated, withered, perhaps from Latin mattus, stupefied, senseless, possibly from *maditus, past participle of madēre, to be wet.] |