Route or Track? Is there a difference?

HI everyone. This may be a dumb question......I'm fairly new to using my Etrex 20 which I bought after my wife told me I needed an alert signal to stop me wandering off course......She's only being kind after I did get a little lost in the Lake District last year......

Anyway, I wondered if there was a difference between a "Route" and a "Track"? I ask only because, fir the first time, I've plotted a simple walk in ViewRanger (now OutdoorActive) and it allows me to creat a GPX file which I've done. I've sent that to the Etrex 20, and it has appeared in "Tracks" whereas all other GPX files I've downloaded (all created by other people, thank you!) have gone into the "Route" folder.

I just wondered if there was a difference between the two and, if so, a) what are the differences and b) is one better than the other?

Thanks in advance of any replies!!

Mike