This is the 470th most frequent Korean word.
위험이
"위험이" means "danger" or "risk."
Here, "위험이" is the subject of the sentence, referring to impending danger present in the location.
이곳은 위험이 가득합니다.
This place is full of danger.
In this case, "위험이" is part of the phrase describing sports that involve a high level of risk.
위험이 많은 스포츠는 신중해야 합니다.
Sports with many risks require caution.
"위험이" here denotes the subject linked to the consequences of a decision, emphasizing the dangers accompanying it.