Examples from the Web for aua
The nurse speaks with me of Caro; the child attends and says aua; he knows what we were talking about.The Mind of the Child, Part II|W. Preyer
Ear, ochtauakay (ch guttural; aua separated; kay German, with the rest of the word).
For directing the sledge the following words are used: Aua, aua!The Central Eskimo|Franz Boas
The dehortative and cautionary particles kaua, aua, kei, belong strictly to the imperative.Grammar of the New Zealand language (2nd edition)|Robert Maunsell