replaceability vs substitutability

replaceability and substitutability both are nouns.

Word	Noun	Adjective	Verb	Adverb
replaceability	Yes	No	No	No
substitutability	Yes	No	No	No

As nouns, replaceability and substitutability are synonyms defined as:

replaceability and substitutability: exchangeability by virtue of being replaceable

Other synonyms of replaceability include commutability.

replaceability (noun)	substitutability (noun)
exchangeability by virtue of being replaceable	exchangeability by virtue of being replaceable