ordinal vs sixteenth

ordinal and sixteenth both are nouns.

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

ordinal (noun)	sixteenth (noun)
the number designating place in an ordered sequence	one part in sixteen equal parts
	position 16 in a countable series of things

ordinal (adjective)	sixteenth (adjective)
being or denoting a numerical order in a series	coming next after the fifteenth in position
of or relating to a taxonomic order