Crossword Genius

Where Nissan and Nintendo are headquartered (5)

Ross

I believe the answer is:

japan

(Other definitions for japan that I've seen before include "It's a string of more than 3,000 islands" , "black gloss" , "Far Eastern island country" , "Glossy black lacquer" , "Country in East Asia" .)

I've seen this clue in The New York Times.
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