There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
vista
place name. Air
vista
noun. air as substance
A noun in The Etymologies of the 1930s for “air as substance” derived from the root ᴹ√WIS “air” (Ety/WIS). Elsewhere ᴹQ. Vista was a name for the region of (Lower) Air as the home of the birds (SM/236), but since that term seems to have become Q. vilya, I would use vista in its sense “air as substance” (the thing you breath) from The Etymologies.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
Name for the region of Air in Silmarillion notes from the 1930s (SM/236). It is simply vista “air as substance” used as a name.