IPA: /ɪkˈspʌlʃən/
KK: /ɪkˈspʌlʃən/
The action of forcing someone to leave a place or organization.
The school decided on the expulsion of the student for repeated violations of the rules.
Expulsion → It is formed from "ex-" (meaning out) and "pulsio" (from "pulsare", meaning to drive or push). The word "expulsion" refers to the act of driving or pushing someone out.
Think of someone being 'driven out' ('ex-') — that's why expulsion means to push someone out.