Although the terms in the hobby are interchangeable like others I consider a jersey "game used" when it was used in an actual game. If the guy sat on the bench then it is "game worn".

When I first joined the forum I suggested to the moderators at the time that they start a Sticky or Exceptionally Educational Thread of hobby related terms that collectors, especially new ones, could refer to. Never got a response but I think it would still be a good thing to try and do.

In addition (and next to impossible I'm sure) it would be nice to see the forum take the lead in trying to establish a standard glossary of terms used throughout the hobby like this 'game used vs game worn' one that comes up or at least terminology/definitions that are accepted here on the forum would be a good start. Maybe there could be a summit held at the National to discuss this issue since that seems to be the one time that most of the bigwigs and auction houses in the hobby are all in one place.