averiguar

verb
  1. To find out or discover something by investigation or inquiry. verb
    She had to averiguar the truth about what happened.
    He decided to averiguar the cause of the strange noise in the house.
  2. To verify or ascertain the truth or facts of something. verb
    The detective was determined to averiguar the facts of the case.
    Before making a decision, it's important to averiguar all the details.