When to use subscriber in Korean
Korean: 구독자[ gu-dok-ja ]

When to use it
A subscriber (구독자) is a person who signs up to receive or follow something regularly, like a YouTube channel, magazine, or newsletter. You use this word when talking about people who get content again and again. For example, someone can be a channel subscriber or a magazine subscriber.
Example sentences
저는 그 유튜브 채널 구독자예요.
I am a subscriber to that YouTube channel.
우리 누나는 요리 잡지 구독자예요.
My older sister is a subscriber to a cooking magazine.
학교 신문 구독자가 많아요.
The school newspaper has many subscribers.
공원에서 만난 친구는 그 뉴스레터 구독자예요.
The friend I met at the park is a subscriber to that newsletter.
이 쇼핑 앱 구독자는 할인 쿠폰을 받아요.
Subscribers to this shopping app get discount coupons.
아버지는 여행 잡지 구독자라서 매달 책을 받아요.
My father is a subscriber to a travel magazine, so he gets it every month.