I'd often seen the word "homeworld" in SF films, but is it possible to use it in real life?
Answer from a Native speaker
Perhaps if you were talking about it metaphorically, then you could. But otherwise, it's not a common term in real life, since all humans are form this planet, Earth! Ex: Moving felt like I had left my homeworld and found myself on a whole new planet. => metaphorically Ex: This is our world, so we have to take care of it.
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