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