Nouns

(n)mata thick flat pad used as a floor covering
(n)mat, mattingmounting consisting of a border or background for a picture
(n)mat, gym matsports equipment consisting of a piece of thick padding on the floor for gymnastic sports
(n)mata mass that is densely tangled or interwoven“a mat of weeds and grass”
(n)flatness, lusterlessness, lustrelessness, mat, matt, mattethe property of having little or no contrast; lacking highlights or gloss
(n)raft foundation, raft, mata foundation (usually on soft ground) consisting of an extended layer of reinforced concrete
(n)mata small pad of material that is used to protect surface from an object placed on it

Verbs

(v)entangle, tangle, mat, snarltwist together or entwine into a confusing mass“The child entangled the cord”
(v)felt, felt up, mat up, matt-up, matte up, matte, matchange texture so as to become matted and felt-like“The fabric felted up after several washes”

Adjectives

(s)flat, mat, matt, matte, mattednot reflecting light; not glossy“flat wall paint”, “a photograph with a matte finish”