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  1.                 From WordNet dictionary, version 3.0:
                

    
                
                  
    nan
n. 1. your grandmother
2. the mother of your father or mother
Synonyms: grandma, grandmother, granny, grannie, gran, nanna
3. a river of western Thailand flowing southward to join the Ping River to form the Chao Phraya
Synonyms: Nan, Nan River
4. leavened bread baked in a clay oven in India; usually shaped like a teardrop
Synonyms: naan