“Getting a pass” means being allowed to proceed or being exempted from something. Some synonyms for “getting a pass” are “being excused”, “receiving clearance”, and “obtaining permission”.
“Being excused” implies being let off from a duty or obligation. For example, “She was excused from the meeting due to a family emergency.” This shows that she was given a pass and did not have to attend the meeting.
“Receiving clearance” suggests being given permission to move forward or access a certain area. “The ship received clearance to enter the port.” Here, it means that the ship was allowed to proceed and enter the port.
“Obtaining permission” means getting the go-ahead or consent to do something. “He obtained permission to take a day off work.” This shows that he was given a pass and was allowed to take the day off.