American Heritage Dictionary
(2)
Century Dictionary
GNU Webster's 1913
(1)
WordNet
Elsewhere on the web
A really good cold drink we like is the Lemon-nana which is crushed mint, ice and lemon and it could be a cocktail if vodka was on hand.— TravelPod.com Recent Updates
(My own mother, for example - "nana" - comes to look after my kids twice a week: She would easily win a GAS case, I bet, if I divorced my wife and she tried maliciously to block nana's access.)— The Globe and Mail - Home RSS feed
He should know that if you live by the nana, you die by the nana.— Mail & Guardian Online
She was really upset she missed her "nana," so her father, Scott, hugged and comforted her.
After our first best pizza EVER we had an anxious wait for Michelle, the kids & nana - then finally they arrived, of course cassidy didn't really recognise us after 18 months but it didn't take her long to warm to us!— TravelPod.com Recent Updates

American Heritage Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word a few times a year.
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