IPA: /ɪkˈspænsɪvɪti/
KK: /ɪkˈspænsɪvɪti/
The quality of being able to expand or grow; the ability to cover a large area or include many things.
The expansivity of the universe is a topic of great interest to astronomers.
Expansivity → It is formed from "ex-" (meaning out) and "pandere" (meaning to spread). The word describes the quality of being able to spread out or expand.
Think of something that spreads 'out' ('ex-') — that's why expansivity means the quality of spreading out.