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