EXAM (5 letters) The term 'TEST PERIOD' can be broken down into two crossword solutions: TRIAL (5 letters) and EXAM (5 letters). A TRIAL is a formal process in which evidence is presented to determine the guilt or innocence of an accused person. An EXAM is a form of assessment, typically a written or oral test, to measure a person's knowledge, skills, or aptitude in a particular subject. Therefore, the term 'TEST PERIOD' can be used to describe a period of time in which an individual is evaluated through a TRIAL or an EXAM.