art vs origami

art and origami both are nouns.

Word	Noun	Adjective	Verb	Adverb
art	Yes	No	No	No
origami	Yes	No	No	No

As nouns, origami is a hyponym of art; that is, origami is a word with a more specific, narrower meaning than art:

art: the creation of beautiful or significant things
origami: the Japanese art of folding paper into shapes representing objects (e.g., flowers or birds)

art (noun)	origami (noun)
the creation of beautiful or significant things	the Japanese art of folding paper into shapes representing objects (e.g., flowers or birds)
the products of human creativity; works of art collectively
a superior skill that you can learn by study and practice and observation
photographs or other visual representations in a printed publication