This is the 16517th most frequent Korean word.
사과가
"사과가" means "apple" (subject marker used for context).
Here, '사과가' indicates the subject of the action, 'apple.' The particle 가 denotes the noun as the subject of the sentence.
사과가 떨어졌다.
The apple fell.
In this context, '사과가' marks 'apple' as the subject being described, emphasizing the property's quality of 'deliciousness.'
사과가 정말 맛있어요.
The apple is really delicious.
Here, '사과가' demonstrates the item subject associated with the verb 좋아요 (to like), showing preference or affection for apples.