usability
/ˌjuːzəˈbɪlɪti/ noun C1- The state or condition of being usable.
- The degree to which an object, device, software application, etc. is easy to use with no specific training.
Plural usabilities
Learn usability in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.