mat

adjective

1
not reflecting light; not glossy
flat wall paint
a photograph with a matte finish

1
a thick flat pad used as a floor covering
2
a master's degree in teaching
3
sports equipment consisting of a piece of thick padding on the floor for gymnastic sports
4
a small pad of material that is used to protect surface from an object placed on it
5
mounting consisting of a border or background for a picture
6
the property of having little or no contrast; lacking highlights or gloss
7
a mass that is densely tangled or interwoven
a mat of weeds and grass

1
change texture so as to become matted and felt-like
The fabric felted up after several washes
2
twist together or entwine into a confusing mass
The child entangled the cord

Also useful for “mat”:Unscrambler— Turn loose letters into real words