noun.a piece of coarse, woven, plaited, or felted fabric used especially as a floor covering or a support

• an algal mat
• a mat of unkempt hair

noun.a piece of material placed at a door for wiping soiled shoe soles

noun.a decorative piece of material used under a small item (such as a dish) especially for support or protection

verb.to provide with a mat or matting

• dirt and filth matted her hair

verb.to form into a tangled mass

verb.to pack down so as to form a dense mass

verb.to make (something, such as a metal, glass, or color) matte

verb.to provide (a picture) with a mat

adjective.lacking or deprived of luster or gloss: such as

• matte metals
• a matte finish

adjective.having a usually smooth even surface free from shine or highlights

adjective.having a rough or granular surface

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

noun.matrix