This is the 558th most frequent Chinese word.
超
"超" means "surpass," "overtake," or "exceed."
In this sentence, '超' is used as an adverb to emphasize the degree of delicacy, meaning 'extremely' or 'super'.
这家餐厅的菜超好吃！
The food at this restaurant is extremely delicious!
Here, '超' is used as a prefix meaning 'super' or 'ultra' to describe an exceptional degree of height in her score.
她在数学考试中得了超高的分数。
She got a super high score on the math exam.
In this usage, '超' conveys strong affection or preference, akin to saying 'I really' or 'I'm super' into this movie.