Aliasing tights → pantyhose
Link to alias

Reason:

The difference between pantyhose and tights seems to be in thickness/opacity, with no clear dividing line between the two. I think grouping these under pantyhose makes sense, as it has the cleanest definition (that being 'sheer tights', with anything sheerer still considered pantyhose until you reach 'nothing'). This will at least bring them together under the same class of garment, letting the viewer make the judgment for themselves.

That still leaves some ambiguity at the thicker/opaque end, so maybe tights could be later be made a subset e.g. 'particularly thick/opaque pantyhose', but again, there's no objective line on that end.