parallel interface vs parallel port

parallel interface and parallel port both are nouns.

Word	Noun	Adjective	Verb	Adverb
parallel interface	Yes	No	No	No
parallel port	Yes	No	No	No

As nouns, parallel interface and parallel port are synonyms defined as:

parallel interface and parallel port: an interface between a computer and a printer where the computer sends multiple bits of information to the printer simultaneously

parallel interface (noun)	parallel port (noun)
an interface between a computer and a printer where the computer sends multiple bits of information to the printer simultaneously	an interface between a computer and a printer where the computer sends multiple bits of information to the printer simultaneously