This is sort of a thought experiment. I am not sure I expect it to mature into a canonical question, but I hope to have a little discussion through it.
Imagine someone asks “What is/are X?”, where X can be anything - “chairs”, “science”, “definitions”, “doing”. The contributor J D says in this answer:
…philosophy often recognizes two broad types of definitions: real and lexical. Lexical definitions are those which…describe how people use language…real definitions are attempts to state essential properties of entities…
(and links to Stanford Encyclopedia of Philosophy articles on “Definitions” and “Concepts”).
On the one hand, let us take this idea at face value. The next time someone asks me “What is X?”, I can immediately realize that there are two separate questions to be answered: “How do people appear to be using that word?”, vs. “What is the actual thing, which is merely being hinted at, by that word?”
The first question sounds unexpectedly empirical. Contrary to intuition, it should not require almost any inner contemplation, but might simply require us to do some kind of “field study” in which we passively observe and note down all of the uses of the word which we see in the world around us.
The second question bothers me as an extremely rich philosophical question of its own which should maybe be factored out into its own question, but some preliminary considerations include the following. When someone asks “What is X?” and we understand that ‘X’ is just a sign pointing at some thing, we already assume the existence of said thing. In other words, it is like we agree that we have enough of a common understanding to know we are both looking at the same object, but we also both know that we don’t know everything about that object. Now the task appears to be intensely logical: we apparently have enough conditions on some thing to determine a thing, but we see it through a blurry window… we may know extremely little about what it is, or what it is like, but we already feel there is sufficiently strong enough reason to know that there is a thing there. (Here is where I guess one could get into some classic philosophical discussions about things like denotation, from Bertrand Russell or Saul Kripke… as in, there are tricky questions sometimes about to what extent a property determines something of unique identity, or not…).
That second one bothers me and it is a thing I have been curious about for a while now. I may currently favor some theory about concepts which has to do with the statistical concept of clustering. I don’t know a name for it, but I am pretty sure there is a philosophical view on concepts that the more inextricably interrelated certain properties are, the more we naturally perceive something as being a thing, and with good reason: a bundle of properties with profound logical integration thus acts in a highly integrated fashion with regards to things like cause and effect: for example, by eliminating the concept of “anatomically female” and making use of concepts such as “people who have breasts” and “people who have wombs”, it is like it is almost inevitable that we would “re-discover” an intense convergence, or parallelism, between those two things. They are in some way highly bound to each other, extremely frequently co-occurrent. This paragraph roughly summarizes the theory that I have long wanted to go into, but haven’t yet.
I think the point here is, there may be a way of arguing that things can have an inherent existence outside of the human mind, and that actually, the human conceptual system is really just an attempt at learning about all the things out there, as accurately as possible (and how they relate to each other, and so forth). (Of course, we could then talk about the profound influence that reification has, in which the reverse actually does happen - that people construct concepts by definition, whereupon the social world actually manifests them because human agents actually determine their existence, as an integrated phenomenon exerting cause-and-effect influence on the world - so they become real. And once something has become real, it is (now) real. Again, this is an entire theory I want to develop but have not yet, so it’s meant to be related, but a side-note). This is partially meant to be in contrast to someone who might say that there simply are no “things” without a human mind making arbitrary distinctions between the totality of ephemera in the universe, but I believe there is a deeper point to be made here in contrast to perhaps neo-Aristotelian(?) views on things as being defined by particular truth conditions.. I think the point may be to stop distinguishing between “things” and “properties”, since every property is a thing, and is also defined in terms of other things.. I will need time to develop what I am reaching for, here.
All this is (maybe) meant to buttress the view that it definitely does not make sense to just assume that “there is such a thing”, for a given word. The reason why is that we have not comprehensively examined what clusters are there, for a given starting condition. Let’s agree that we don’t know what a “woman” is, but we think we can begin with a bit of logical, propositional, conceptual, semantic “content” to actually determine the thing quite well: “Whatever Natalie Portman, Michelle Obama, my sister, Malala Yousafzai, and the Queen of Brunei have in common (and notice implicitly that I did not mention various things such as carrots, Mark Wahlberg, or being an actress, even though I didn’t explicitly say they were excluded.)” We don’t know what would happen. We may be surprised to discover that there is a fascinating distinction that naturally leads to the emergence of two sub-clusters - we didn’t realize all along that these two things are actually not the same thing (say, in a given context). Examples of this are strongest in science, where for example, we learn that by convergent evolution, two nearly identical species are from completely different zoological classifications, or something (that is, the way we cluster things is not unilateral, but related to maybe a certain context, or a property we are clustering on).
But I think it gets more complicated. Let’s go back to the original idea:
…philosophy often recognizes two broad types of definitions: real and lexical. Lexical definitions are those which…describe how people use language…real definitions are attempts to state essential properties of entities…
How do we know that this is true? It seems we have to go to a far more intensely primary level of self-inspection, to completely engage with this question in a far more authentic way..
It seems the most direct and unbiased way to try to answer a question “What is X?” is by self-querying.. what do I think the word means? Can I explore my own consciousness and cognition to explore if I feel there is/are some aspect or aspects which emerge in my mind somehow as most characteristic, definitive, emblematic, prominent, canonical?
While I do not feel satisfied with the current state of this question, I’d like to leave off here until I can gather my thoughts further. Let us make the meta-philosophy question the core focus here: it is less interesting to suggest ways in which one might approach answering the question “What is X?” - but philosophically, due to an epistemological reason, how should one answer such a question - what is a wrong way, and what is a right way, and why?