seventy-eight vs 78

seventy-eight and 78 both are nouns.

Word	Noun	Adjective	Verb	Adverb
seventy-eight	Yes	Yes	No	No
78	Yes	Yes	No	No

As adjectives, seventy-eight and 78 are synonyms defined as:

Other synonyms of seventy-eight include lxxviii.

As nouns, seventy-eight and 78 are synonyms defined as:

seventy-eight and 78: a shellac based phonograph record that played at 78 revolutions per minute

As nouns, seventy-eight and 78 are synonyms defined as:

seventy-eight and 78: the cardinal number that is the sum of seventy and eight

Other synonyms of seventy-eight include LXXVIII.

seventy-eight (noun)	78 (noun)
a shellac based phonograph record that played at 78 revolutions per minute	a shellac based phonograph record that played at 78 revolutions per minute
the cardinal number that is the sum of seventy and eight	the cardinal number that is the sum of seventy and eight

seventy-eight (adjective)	78 (adjective)
being eight more than seventy	being eight more than seventy