Hi there,

Sometimes they can mean the same, association can also mean a formal organization of people.

However, depending on the context ASSOCIATION can also mean

- an act of consorting or joining with others  

-social or business relationship: WE have a business association with xxxxx company.

I hope it helps.

Hi!

organizzation is a generic term, whatever its nature, by anyone formed,  as a governmental organization or church or sports,  as association is a free union of people with a purpose, unofficial.