Normal? Abnormal? By What Measure?

Google defines Normal as: [ˈnôrməl]ADJECTIVE conforming to a standard; usual, typical, or expected. Google then defines Abnormal as: [abˈnôrməl]ADJECTIVE deviating from what is normal or usual, typically in a way that is undesirable or worrying. How would YOU define normal? Yes, context matters, but is there REALLY a line of normalcy? Why do we need … More Normal? Abnormal? By What Measure?