This is the 19107th most frequent Korean word.
아이온
"아이온" (Aion) refers to "eternity" or "an age/epoch" depending on context.
In this sentence, '아이온' refers to a specific proper noun, the name of a video game, presenting its status as subject.
아이온은 새로운 게임으로 많은 사람들에게 인기를 얻고 있습니다.
Aion is a new game that is gaining popularity among many people.
Here, '아이온' identifies a corporation, used as a proper noun in an official title.
우리는 아이온 주식회사의 제품을 사용하고 있습니다.
We are using the products of Ion Corporation.
In this case, '아이온' is a transliteration of 'ion,' taking on a scientific meaning within the context of chemistry.