WordReference Random House Unabridged Dictionary of American English © 2026
Four′ Hun′dred, 
  1. the exclusive social set of a city or area.
Also, 400. 
  • allegedly after the capacity of the ballroom in the mansion of Caroline Schermerhorn Astor, a leader of New York society in the late 19th century 1885–90, American.

'Four Hundred' also found in these entries (note: many are not synonyms or translations):
all in - catch - four-hundred-day clock - quadricentennial

🗣️Forum discussions with the word(s) "Four Hundred" in the title:


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