Japan vs sumo

Japan and sumo both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japan	Yes	No	No	No
sumo	Yes	No	No	No

Japan (noun)	sumo (noun)
a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building	a Japanese form of wrestling; you lose if you are forced out of a small ring or if any part of your body (other than your feet) touches the ground
a string of more than 3,000 islands to the east of Asia extending 1,300 miles between the Sea of Japan and the western Pacific Ocean