Convertible
/kənˈvəːtɪbəl/
noun
(in plural) Interchangeable things or terms.
A convertible car: a car with a removable or foldable roof able to convert from a closed to open vehicle and back again.
A convertible security: a stock, bond, etc. that can be turned into another (usually common stock) under certain set terms.
adjective
Able to be converted, particularly:
Synonyms: equivalent, interchangeable, swappable, synonymous