This is the 16378th most frequent Korean word.
비트코인
"비트코인" (Bitcoin) is a decentralized digital currency.
The word '비트코인' is used here as the object of the verb '투자하다', meaning 'to invest', specifying the entity being invested in.
나는 비트코인에 투자하기로 했어요.
I decided to invest in Bitcoin.
In this sentence, '비트코인' is the subject and the main topic of the sentence, referring to its increasing popularity.
요즘 비트코인이 큰 화제를 모으고 있어요.
Lately, Bitcoin has been gathering a lot of attention.
Here, '비트코인' is a specific term defining the type of cryptocurrency, associated with its recognizability and classification.