The phrasal verb ‘set out’ has a number of meanings in social and professional situations. Firstly, 'to set out' can mean to begin something or to start working on something to achieve a specific result. If you 'set out' objects, it means you put things where they can easily be seen or used by others. 'Set out' can also mean to explain something in a clear, sequential or detailed way. So you can 'set out steps' or 'set out instructions', for example. You can use 'set out' to talk about starting or beginning a journey, especially a long one.
Additional examples with 'set out' are:
A novel describes a group of friends who are about to spend a holiday at a lake together: “We set out after dinner to the lake where we would spend the rest of the weekend.” A teacher is sick and leaves some instructions for her assistant to follow: “I can't be there to help you with the class tomorrow, but I have set out a lesson plan for you to follow.” A mother-in-law is about to call for dinner: “I think we should set out the good tableware and the crystal glasses.”