cobble vs furbish up

cobble is a noun but furbish up is not a noun.

Word	Noun	Adjective	Verb	Adverb
cobble	Yes	No	Yes	No
furbish up	No	No	Yes	No

As verbs, furbish up is a hypernym of cobble; that is, furbish up is a word with a broader meaning than cobble:

cobble: repair or mend
furbish up: restore by replacing a part or putting together what is torn or broken

Other hypernyms of cobble include bushel, doctor, fix, mend, repair, restore, touch on.

cobble (noun)	furbish up (noun)
rectangular paving stone with curved top; once used to make roads

cobble (verb)	furbish up (verb)
repair or mend	restore by replacing a part or putting together what is torn or broken
pave with cobblestones