Hello, you have come here looking for the meaning of the word Onomastus. In DICTIOUS you will not only get to know all the dictionary meanings for the word Onomastus, but we will also tell you about its etymology, its characteristics and you will know how to say Onomastus in singular and plural. Everything you need to know about the word Onomastus you have here. The definition of the word Onomastus will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofOnomastus, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.