beggar vs mooch

beggar and mooch both are nouns.

Word	Noun	Adjective	Verb	Adverb
beggar	Yes	No	Yes	No
mooch	Yes	No	Yes	No

As nouns, mooch is a hyponym of beggar; that is, mooch is a word with a more specific, narrower meaning than beggar:

Other hyponyms of beggar include beggarman, beggarwoman, cadger, moocher, scrounger, panhandler, sannyasi, sannyasin, sanyasi.

beggar (noun)	mooch (noun)
a pauper who lives by begging	someone who mooches or cadges (tries to get something free)

beggar (verb)	mooch (verb)
reduce to beggary	ask for and get free; be a parasite
be beyond the resources of