PROCESS, TRIAL or HEARING: What's the difference?

At the office the other day, someone had a question about what the difference was between a process and a trial. So this one is for you #frenchspeaker #learningenglish , and I've added in "hearing", too. #esl #learninglanguages #englishvocabulary #falsefriends #englishexam #questionsandanswers