So this site has a word-study tag, but there's been some debate over what it means and how it should be used.
This site doesn't have to use the term in exactly the same way that others do, but it's usually most helpful to do that. So the first question we should consider is what the academic field of Biblical Studies means when it says "word study". Likewise what lay-level Christian and Jewish books mean by the term.
Now I admit I haven't looked up any academic resources to confirm my understanding of the meaning, but based on how I've heard it used, I think "word studies" are studies of a particular word in a Biblical text across a wider text unit than just one verse or passage. So something like the meaning of "justification" in Romans, or "seed/offspring" in Genesis would be prototypical word study topics and questions. Often, but not necessarily always, will that be focused in on one passage, for example, "How does Roman's use of "justification" help us understand Romans 5:18?"
Do you think my understanding of the term matches how it is commonly used by others?
Now even if we did agree with that (and we may disagree, I could be convinced that my understanding is non-standard, just show me those references!), we would also then have to decide how word study questions should be asked on this site. Even when a subject is on-topic on this site, it can still be too broad. So we wouldn't want to allow questions asking for a whole-Bible word study - those deserve whole books to be written instead.
I wrote before on Meta that some theological questions can be disguised as word-study questions, giving the example of a question asking about the use of 'justified' in Paul and James. So my guidance would be that the scope of word study questions on this site should generally be somewhat narrow - usually restricted to the works of one human author, sometimes even just one book. So word study questions could be asked about all of Paul's epistles. Very rare words, like Propitiation, would probably also be okay, even though it may occur in books from different authors. But common words, like 'sin', or 'church' would be too broad for a word-study question on this site. By all means go and write an in-depth study and try to get it published elsewhere though!
It may instead be that most people think a "word study" means an in-depth study of one word in one passage, but rather than looking at how it's used in other Biblical texts, they're more looking at etymology, use in extra-Biblical texts, and so on.
If that's the case, then I'm not sure that having a word-study tag is actually useful for this site? Because in-depth studies of single verses is actually bread and butter for this site. We don't need a tag for that. For me, it only makes sense to have a tag for questions which are a bit more unusual, such as studying a word across a wider textual unit, such as a whole Biblical book.
I've tried to give some shape to this discussion, but please feel free to raise your thoughts about word study questions however you see fit. Let's try to come to a clearer community consensus, and then edit the tag's description accordingly.