I have not yet had the privilege, or otherwise of being fired yet, but that meaning of the word fire is to get removed unceremoniously from your job.
Donald Trump used to use it a lot on the Apprentice, eg, “Your fired”. And, believe it or not, I used to like that show.
Fire can be quite hot, something you can sit in front of on those cold winter nights, whether it be a gas fire, or a wood fire, my preference.
Then there’s a phrase, set fire to, which can be good or bad depending on what eventually gets burned.
I have on the odd occasion had someone fire my imagination, probably a good thing being a writer.
To feel the fire in the back of your throat when drinking neat whiskey, is so much better when it is an expensive brand
Then there’s the fire in your heart driving patriotism, but make sure it is for the right reasons.
If you have a gun, then when you pull the trigger you fire it. Just be sure not to be pointing it the wrong way or any anyone.
A good indication is when you hear the words, ready, aim, fire. Especially if you are in the wrong place at the wrong time. Napoleon can attest to that, it is alleged!
fire off a message, hopefully, a nice one
fire questions rapidly at someone (but not a politician, they have to have time to answer anything but the question asked)
or accidentally fire someone up by saying the wrong thing
or fire a piece of pottery, and in saying that, the best I could do was an awkward mug.