great- - definition and synonyms

prefix 

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/ɡreɪt/
  1. 1
    used with nouns describing older relatives to make other nouns meaning the grandfather, grandmother etc of your parent

    my great-grandfather (=the grandfather of one of my parents)

    my great-aunt (=the aunt of one of my parents)

     Synonyms and related words
  2. 2
    used with nouns describing younger relatives to make other nouns meaning the child of your grandson, granddaughter etc

    my great-granddaughter (=the daughter of my grandchild)

    my great-nephew (=the son of my nephew)

     Synonyms and related words