Japan vs yakuza

Japan and yakuza both are nouns.

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

Japan (noun)	yakuza (noun)
a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building	organized crime in Japan; an alliance of criminal organizations and illegal enterprises
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	a Japanese gangster