Is it correct to say..

"This chicken tastes fabulous."

Is the word "fabulous" used correctly in this context?

Yes, it is.

I am very sorry. What does the adverb very modify.

Yes, the word "fabulous" is used correctly in the given context. It is often used to describe something as excellent, wonderful, or extremely good. In this case, it suggests that the chicken has a great taste.

To determine if a word is used correctly in a context, you can consider its definition and appropriateness for the situation. In this case, "fabulous" is an appropriate word to describe the taste of chicken. You can also consult a dictionary to ensure that the word fits the intended meaning and usage.