> Firing is when employer terminates someone for cause, i.e. employee did something wrong or didn't meet expectations.

This meaning is present in many people's minds. It is not present in many people's minds or any dictionary I saw ever.

to remove someone from their job, either because they have done something wrong or badly, or as a way of saving the cost of employing them[1]

The act or an instance of dismissing someone from a job.[2]

the action of forcing somebody to leave their job[3]

And so on.

[1] https://dictionary.cambridge.org/dictionary/english/fire

[2] https://www.thefreedictionary.com/firing

[3] https://www.oxfordlearnersdictionaries.com/definition/englis...