parity check vs redundancy check

parity check and redundancy check both are nouns.

Word	Noun	Adjective	Verb	Adverb
parity check	Yes	No	No	No
redundancy check	Yes	No	No	No

As nouns, parity check and redundancy check are synonyms defined as:

parity check and redundancy check: a system of checking for errors in computer functioning

Other synonyms of parity check include odd-even check.

parity check (noun)	redundancy check (noun)
a system of checking for errors in computer functioning	a system of checking for errors in computer functioning