In an older sense, an étagère
is a bookshelf
that is often narrow
, and sometimes tapered
to become narrower at the top. Fine étagères
are truly beautiful pieces of furniture
The more common meaning, at least in the US, is a bathroom rack that stands on legs on both sides of the the toilet. It typically has two to four shelves for towels and the like. In some places, this item is called a toilet topper. These étagères are not necessarily beautiful, but they add a minuscule footprint and are reasonably useful.