Adjective four hundred has 1 sense
  1. four hundred, 400, cd - being one hundred more than three hundred
    Antonym: ordinal (indirect, via cardinal)
,Noun four hundred has 1 sense
  1. Four Hundred - the exclusive social set of a city
    --1 is a kind of
    set, circle, band, lot
    --1 is a member of
     society, high society, beau monde, smart set, bon ton
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