intron vs noncoding DNA

intron and noncoding DNA both are nouns.

Word	Noun	Adjective	Verb	Adverb
intron	Yes	No	No	No
noncoding DNA	Yes	No	No	No

As nouns, intron and noncoding DNA are synonyms defined as:

intron and noncoding DNA: sequence of a eukaryotic gene's DNA that is not translated into a protein

intron (noun)	noncoding DNA (noun)
sequence of a eukaryotic gene's DNA that is not translated into a protein	sequence of a eukaryotic gene's DNA that is not translated into a protein