IPA: /ˌɪntəˈræktɪvɪti/
KK: /ˌɪntərˈæktɪvɪti/
The quality of being able to engage or communicate with others, often through technology or activities that allow for participation.
The interactivity of the video game keeps players engaged and entertained.
Interactivity → It is formed from "inter-" (meaning between) and "act" (from Latin "agere", meaning to do or perform) and the suffix "-ivity" (meaning the state or quality of). The word describes the quality of being able to act or perform between entities, often in a responsive manner.
Think of 'acting' ('act') in a way that involves 'between' ('inter-') people or systems, which helps you remember that interactivity means the quality of engaging or responding between them.