I am "Noni" to all my GK's and GGK's...and I love it! They know exactly who's being referred so they can relate. My Mom was "Nana"; one of my DD's is "NaaNaa", the other is "Meemaw" (which I don't care for, but hey, whatta I know?)
and one of MY DGM's was "Gramma" and the other, "Grandma". I do have to admit that I have an older DGS who sometimes slips up and calls me his "gun-totin" granny"...I mean, c'mon! Just because we shoot together??? Whatever name we all go by, those "babies" know who to run to....