Here's why:
* Enhance means to improve or make something better.
* If you see a sentence like, "The new lighting really enhanced the beauty of the artwork," the word "enhanced" is used in a similar way to "improved."
Here's another example:
* "The musician's performance was enhanced by the incredible acoustics of the concert hall."
* Here, "enhanced" is used in a similar way to "improved" or "made better."
Therefore, the context clue is the use of synonyms within the sentence.