I've noticed nowadays that games (and people) only use the term 'lag'.
Except, while playing BZFlag, I've noticed there's two notifications for latency (the proper term 'lag'); "Your jitter is too high (### ms), warning #/#" and "Your latency is too high (### ms), warning #/#".
I've noticed that sometimes, only the "lag" notification comes out along with the "jitter" notification nowadays. But I've remembered back then (around 2008), that only the "jitter" notification comes up.
I've googled up the two and their wikipedia pages and Jitter talks about difference between the interval that the packet's time measure starts, alongside frequencies while the other is about the time difference in receiving, processing and then return-sending a single packet.
There again, I could be reading the incorrect definition for that application of the term.
Is there a difference between "Jitter" and "Latency" (if so, what?), or are they the same thing?