Noun

• S: (n) mat (a thick flat pad used as a floor covering)
• S: (n) mat, matting (mounting consisting of a border or background for a picture)
• S: (n) mat, gym mat (sports equipment consisting of a piece of thick padding on the floor for gymnastic sports)
• S: (n) mat (a mass that is densely tangled or interwoven) "a mat of weeds and grass"
• S: (n) Master of Arts in Teaching, MAT (a master's degree in teaching)
• S: (n) flatness, lusterlessness, lustrelessness, mat, matt, matte (the property of having little or no contrast; lacking highlights or gloss)
• S: (n) raft foundation, raft, mat (a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete)
• S: (n) mat (a small pad of material that is used to protect surface from an object placed on it)

Verb

• S: (v) entangle, tangle, mat, snarl (twist together or entwine into a confusing mass) "The child entangled the cord"
• S: (v) felt, felt up, mat up, matt-up, matte up, matte, mat (change texture so as to become matted and felt-like) "The fabric felted up after several washes"

Adjective

• S: (adj) flat, mat, matt, matte, matted (not reflecting light; not glossy) "flat wall paint"; "a photograph with a matte finish"