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Meaning of seventy-eight

sev•enty-eight

Pronunciation: (sev'un-tē-āt'), [key]
— n.
  1. a cardinal number, 70 plus 8.
  2. a symbol for this number, as 78 or LXXVIII.
  3. a set of this many persons or things.
—adj.
  1. amounting to 78 in number.

78

Pronunciation: (sev'un-tē-āt'), [key]
— pl. 78s, 78's.
  1. an early type of shellac-based phonograph record that played at 78 revolutions per minute.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.