ordinal vs seventh

ordinal and seventh both are nouns.

Word	Noun	Adjective	Verb	Adverb
ordinal	Yes	Yes	No	No
seventh	Yes	Yes	No	No

ordinal (noun)	seventh (noun)
the number designating place in an ordered sequence	the musical interval between one note and another seven notes away from it
	one part in seven equal parts
	position seven in a countable series of things

ordinal (adjective)	seventh (adjective)
being or denoting a numerical order in a series	coming next after the sixth and just before the eighth in position
of or relating to a taxonomic order