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.
ô Archaic
proper name. The Sea, Ocean
ô
preposition. from
ua
noun. the sea
rása
place name. The Sea
Qenya cognate of Rôs “The Sea” in the Gnomish Lexicon from the 1910s (GL/65).
lúto
noun. flood
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 name for “The Sea” in the earliest Lost Tales (LT1/85), marked archaic in the Qenya Lexicon where it was given as a derivative of the root ᴱ√’O’O (QL/70).