Hi Rebols, why are locally created words listed in system/words, too? try: >> cc: words-of system/words == [unset! ... >> xx: func ["Testfunc" yy /local zz][zz: 1 print [ yy zz ]] >> dd: words-of system/words == [unset! ... >> ee: difference cc dd == [xx yy zz] >> value? 'yy == false Are all locally created words listed, and are they the only one listed without values? regards, Ingo -- _ . _ ingo@)|_ /| _| _ <We ARE all ONE www._|_o _ _ ._ _ www./_|_) |o(_|(/_ We ARE all FREE> ingo@| |(_|o(_)| (_| http://www.2b1.de/Rebol/ ._| ._|