IPA: /ɪɡˈzɪstəns/
KK: /ɪɡˈzɪstəns/
The state of being real or having an actual presence; the fact that something is or happens.
The existence of life on other planets is still a mystery.
Existence → It is formed from "ex-" (meaning out of or from) and "sistere" (meaning to stand). The word "existence" refers to the state of standing out or being present in reality.
Think of something 'standing out' ('sistere') from 'out of' ('ex-') — that's why existence means the state of being present.