Seventy eight n 1 a cardinal number 70 plus 8 2 a symbol for this number as 78 or lxxviii 78 sv n tiet n pl 78s 78s a type of shellac based phonograph record that played at 78 revolutions per minute 1950 55 thesaurusantonymsrelated wordssynonymslegend switch to new thesaurus noun 1 78 the cardinal number that is . Weve followed pink martini almost from their inception and see them every time they tour new england often in multiple states china forbes has a beautiful rich voice with an expansive range