mat vs felt

mat and felt both are nouns.

Word	Noun	Adjective	Verb	Adverb
mat	Yes	Yes	Yes	No
felt	Yes	No	Yes	No

As verbs, mat and felt are synonyms defined as:

Other synonyms of mat include felt up, mat up, matt-up, matte, matte up.

As verbs, felt is a hyponym of mat; that is, felt is a word with a more specific, narrower meaning than mat:

Other hyponyms of mat include enmesh, ensnarl, mesh.

mat (noun)	felt (noun)
a thick flat pad used as a floor covering	a fabric made of compressed matted animal fibers
sports equipment consisting of a piece of thick padding on the floor for gymnastic sports
a small pad of material that is used to protect surface from an object placed on it
mounting consisting of a border or background for a picture
a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete
the property of having little or no contrast; lacking highlights or gloss
a mass that is densely tangled or interwoven

mat (adjective)	felt (adjective)
not reflecting light; not glossy

mat (verb)	felt (verb)
change texture so as to become matted and felt-like	change texture so as to become matted and felt-like
twist together or entwine into a confusing mass	cover with felt
	mat together and make felt-like