collectibility vs achievability

collectibility and achievability both are nouns.

Word	Noun	Adjective	Verb	Adverb
collectibility	Yes	No	No	No
achievability	Yes	No	No	No

As nouns, achievability is a hypernym of collectibility; that is, achievability is a word with a broader meaning than collectibility:

collectibility: The quality of being subject to payment or likely to be paid.
achievability: the state of being achievable

Other hypernyms of collectibility include attainability, attainableness.

collectibility (noun)	achievability (noun)
The quality of being subject to payment or likely to be paid.	the state of being achievable