1
                           general:: 
                            Phrase(s): set something down [and] put something down
1. to place something on the surface of something.  •  Andy set the hot skillet down on the dishcloth and burned a hole in it.  •  He set down the skillet here and burned the counter. 2. to write something on paper.  •  Let me put this down on paper so we will have a record of what was said.  •  I will set down this note on paper. 3. to land an aircraft.  •  The pilot put the plane down exactly on time.  •  I can’t set down this plane in the fog., Phrase(s): set someone down (on(to) something) 
to place a person one is carrying or lifting onto something.  •  I set the small boy down onto the desk and gave him a piece of candy.  •  Set the baby down and come over here., Phrase(s): set someone or something down [and] put someone or something down 
to lower or set down someone or something. (See also set something down; put someone or something down.)  •  Put me down!  •  Please set that vase down. It cost a fortune.  •  Put down that gun!
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs
                        
                        
                    
                    
                        2
                           general:: 
                            1. Place in a lower position, as in Set the baby down here, or Set the bags down on the hall table. [Late 1400s] 2. Put in writing, record, as in Just set down all the facts as you remember them. [Second half of 1500s] 3. Regard, consider, as in Just set him down as a fool. [Late 1700s] 4. Assign to a cause, ascribe, as in Let's set down his error to inexperience. [Early 1800s] 5. Land an aircraft, as in The pilot set the plane down hard on the runway.  Also see  PUT DOWN.
                        
                        
 
                        
                            American Heritage Idioms