This is the 12193rd most frequent Korean word.
닛산
Nissan (a Japanese automobile manufacturer).
Here, '닛산' is used as a proper noun referring to the company name of Nissan.
닛산은 일본의 자동차 회사입니다.
Nissan is a Japanese automobile company.
In this sentence, '닛산' refers to the brand of the car.
내 친구는 닛산 차를 샀어요.
My friend bought a Nissan car.
Here, '닛산' is used as an identifier for the showroom related to the Nissan company.