You don’t know the language

If you are ready to speak up, there's a set of unfamiliar jargon. Every company has its acronyms for certain departments or processes and its own terms for people, places and things. "I had to get EVPP and VPR to approve a PAR before sending it to OSP."

It's useful to get a translator. See if a colleague can draw up a cheat sheet for you of commonly used acronyms and phrases. Then, get their permission to ask when a new term arise that you don't know.