Read the following sentence. Ari had been very nervous before the audition, but now that he was finished and he saw the approval on everyone’s faces, he knew he had nailed it.

Use context clues to find the correct definition of the multiple-meaning word nailed as it is used in this sentence.

The definition for "nailed' in this is "to have done precisely"  

Explanation:

In this sentence it states that Ari had seen the "approval on everyone's faces" which in other words he think he had prosecuted the audition correctly which shows that the word nailed must mean "to have done precisely". Another reason is that the other definitions of nailed do not describe this correctly.