It's a hum that remains when the arguments have ended

[svetlana14]

Can I use the noun "hum" figuratively and metaphorically referring to a feeling rather than the actual sound? For example, it's a hum that remains when the arguments have ended.

 

[jutfrank]

Your choice of any word depends on not just what you mean but also on the context in which you want to use it, why you're using it, and who you're talking to.

If you want to use language creatively, that's fine, of course, but you have to consider whether the person you're talking to will understand what you're trying to say.

 

[emsr2d2]

You haven't used "a hum of tension" anywhere in your post so you need to either change your title to something that does appear, or write a sentence containing "a hum of tension" in post #1. You have 24 hours from the time of posting to make edits.