hundredth vs ordinal

hundredth and ordinal both are nouns.

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

hundredth (noun)	ordinal (noun)
one part in a hundred equal parts	the number designating place in an ordered sequence
position 100 in a countable series of things

hundredth (adjective)	ordinal (adjective)
the ordinal number of one hundred in counting order	being or denoting a numerical order in a series
	of or relating to a taxonomic order