plumb lpumb pulmb uplmb lupmb ulpmb plmub lpmub pmlub mplub lmpub mlpub pumlb upmlb pmulb mpulb umplb muplb lumpb ulmpb lmupb mlupb umlpb mulpb plubm lpubm pulbm uplbm lupbm ulpbm plbum lpbum pblum bplum lbpum blpum publm upblm pbulm bpulm ubplm buplm lubpm ulbpm lbupm blupm ublpm bulpm plmbu lpmbu pmlbu mplbu lmpbu mlpbu plbmu lpbmu pblmu bplmu lbpmu blpmu pmblu mpblu pbmlu bpmlu mbplu bmplu lmbpu mlbpu lbmpu blmpu mblpu bmlpu pumbl upmbl pmubl mpubl umpbl mupbl pubml upbml pbuml bpuml ubpml bupml pmbul mpbul pbmul bpmul mbpul bmpul umbpl mubpl ubmpl bumpl mbupl bmupl lumbp ulmbp lmubp mlubp umlbp mulbp lubmp ulbmp lbump blump ublmp bulmp lmbup mlbup lbmup blmup mblup bmlup umblp mublp ubmlp bumlp mbulp bmulp
Note: these 'words' (valid or invalid) are all the permutations of the word plumb. These words are obtained by scrambling the letters in plumb.