cabby vs taxidriver

cabby and taxidriver both are nouns.

Word	Noun	Adjective	Verb	Adverb
cabby	Yes	No	No	No
taxidriver	Yes	No	No	No

As nouns, cabby and taxidriver are synonyms defined as:

Other synonyms of cabby include cabdriver, cabman, hack-driver, hack driver, livery driver, taximan.

cabby (noun)	taxidriver (noun)
someone who drives a taxi for a living	someone who drives a taxi for a living