Early Quenya
túrion
noun. palace
túrion
noun. prince
turanion
noun. prince
turillo
noun. prince
turindo
noun. palace
tur
noun. king
túranu
noun. king
vardar
noun. king
vardo
noun. prince
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.
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.
A word appearing as ᴱQ. tūrion (túriond-) or turindo “palace” in the Qenya Lexicon of the 1910s under the early root ᴱ√TURU “am strong” (QL/95). The contemporaneous Poetic and Mythological Words of Eldarissa had ᴱQ. tūriond- “palace” (PME/96).
Neo-Quenya: I would use ᴺQ. túrion as “palace” for purposes of Neo-Quenya, since the root √TUR “master(y), strong” survived on Tolkien’s later writing. This word was used, for example, in Helge Fauskanger’s NQNT (NQNT). ABNW (ABNW) from the early 2000s proposed a different neologism: ᴺQ. arcöa “palace”, a combination of ar(a)- “noble” and cöa “house”. In a 2024-12-28 post to the Vinyë Lambengolmor Discord Server (VLDS), Fëastorno it might also mean “court” in the sense “residence of a king or ruler”.