No, you aren't: Some names (i often name variables in german, or mix the languages, this i should change!):
@mathsylist : a name for a list in that i store the recent mathsymbols.
%preprintliste : the matching preprints, stored as a hash, in order to avoid trouble with doubleentries in two files.
@sortierteschluessel: this is plural (sorted keys) for exactly that.
It seems that i either use plural or something like list in the end.