IPA: /ʌpˈɡreɪdəˌbɪlɪti/
KK: /ʌpˈɡreɪdəˌbɪlɪti/
The ability of a system or product to be upgraded or improved over time.
The upgradeability of the software allows users to easily install new features.
Upgradeability → It is formed from "upgrade" (from the combination of "up-" (meaning higher) and "grade" (meaning level or rank)) and "-ability" (meaning the quality of being able to). The word refers to the quality of being able to be raised to a higher level or rank.
Think of 'up' meaning higher and 'grade' meaning level — together they describe the ability to raise something to a higher level.