send out phrasal verb (
see also send)
1.  send something/somebody ↔ out to make a person or a group of people or things go from one place to various other places: 
 Information was sent out to interested students.
 Information was sent out to interested students. Search parties were sent out to look for survivors.2.  send something ↔ out
 Search parties were sent out to look for survivors.2.  send something ↔ out to broadcast or produce a signal, light, sound etc: 
 The ship is sending out an SOS signal.3.  send out for something
 The ship is sending out an SOS signal.3.  send out for something to ask a restaurant or food shop to deliver food to you at home or at work: 
 We sent out for sandwiches.
 We sent out for sandwiches.  [TahlilGaran] Dictionary of Contemporary English ▲