What is "XP"?
What does it mean when duolingo tells me I have, say, 3900XP? I can't find any explanation of this on the system. Thanks!
XP probably comes from computer role-playing games where you advance character levels by gaining eXPerience points
Many thanks for your replies. I never use computer games (well, not since the 80s) so had never heard of XPs. Would be simpler just to call them "points", but oh well...