Answer:
The name or word "nana" means different things, depending on the context and culture of origin.
In the United States, Nana often refers to a grandmother or grandmotherly figure, and is also used in the place of "Mom," or "mother" when the grandmother is the primary caretaker.
In some Hispanic cultures, a Nana can be a dearly loved babysitter, especially an older woman.
In India, nana is the word for "maternal grandfather."
As a female name, Nana derives from the Hebrew word for "grace"; from the Hawaiian name for "a month in spring" (also "name of a star"); from the Spanish nickname meaning "grace" or "favor"; from an African title meaning "Your Highness" (king or queen), often followed by the person's true first name;
and from the Japanese word for "apple," (although some Manga fans claim it means "seven," which is really "shichi"). {{Actually, nana is translated as seven and so is shichi. It's just like the number four which can be either "yon" or "shi".}} **CELESTE**
In Greek mythology, Nana was a naiad nymph of the river.
In French, nana means "chick." (usually refers to a girl)
In Italian, nana means "dwarf."
Nana is also a Japanese Manga anime and graphic novel series about two girls with the same name (Nana) who meet on a train in Tokyo.
Finally, Urban Dictionary claims several slang meanings, which I'm not going to write here.