IPA: /ˌɒpəˈræbɪlɪti/
KK: /ˌɑːpəˈræbɪlɪti/
The ability of a system or device to be used or operated effectively.
The operability of the new software was tested before its release.
Operability → It is formed from "operari" (meaning to work or to operate) and the suffix "-ability" (meaning the quality of being able to). The word "operability" refers to the quality or state of being able to operate or function effectively.
Think of the word 'operate' which means to work, and remember that 'operability' is about the quality of being able to work or function.