The word abstract generally connotes something which is general rather than particular and consisting in the mind or realm of ideas rather than a concrete and actual instance. Metaphysics is often described as an abstract inquiry into being. Yet being (or at least beings) are particular and actual. How do philosophers grapple with this seeming contradiction?
How about an enquiry into the general nature of particular actual things? For example on might ask: what, if anything, do all particular and actual things have in common? What distinguishes them from non-particular and/or non-actual things, if any such there be?