Qenya
tinwe
noun. spark (star)
tinwe-malle
place name. Star-street
elen
noun. star
elena
noun. star
ellen
noun. star
él Archaic
noun. star
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.
Another name for Ilmen in notes from the early 1930s (SM/241), a combination of tinwe “star” and malle “street”.