1.  seventy-eight(n = noun.quantity) 78, lxxviii - the cardinal number that is the sum of seventy and eight;
is a kind of large integer

2.  seventy-eight(n = noun.artifact) 78 - a shellac based phonograph record that played at 78 revolutions per minute;
is a kind of disc, disk, phonograph record, phonograph recording, platter, record

   seventy-eight(s = adj.all) 78, lxxviii - being eight more than seventy;