What is the difference between wind, jet and outflow? For jets, I found a pdf file here


  Jet: collimated beam of matter of high velocity
  
  sources: young stars, active galactic nuclei, $\mu$-quasars, gamma­ ray bursts, planetary nebulae, pulsars
  
  jet sources host accretion disks


How about winds and outflows? Can somebody make some clarifications for the three concepts， their correlation and difference?
I'm not sure there are very clear official definitions, but here is my take on accepted usage in the star formation community:

Outflows - general term describing both winds and jets.

Jets - collimated outflows along magnetic poles.

Winds - outflow from the stellar surface in all directions, not just along the poles.

Stellar winds are what comes from individual bright stars. Jets can be protostellar jets from young stars, or on a larger scale from galactic nuclei.