expend xepend epxend pexend xpeend pxeend exepnd xeepnd eexpnd eexpnd xeepnd exepnd epexnd peexnd eepxnd eepxnd peexnd epexnd xpeend pxeend xepend expend pexend epxend expned xepned epxned pexned xpened pxened exnped xenped enxped nexped xneped nxeped epnxed penxed enpxed nepxed pnexed npexed xpneed pxneed xnpeed nxpeed pnxeed npxeed exenpd xeenpd eexnpd eexnpd xeenpd exenpd exnepd xenepd enxepd nexepd xneepd nxeepd eenxpd eenxpd enexpd neexpd enexpd neexpd xenepd exnepd xneepd nxeepd enxepd nexepd epenxd peenxd eepnxd eepnxd peenxd epenxd epnexd penexd enpexd nepexd pneexd npeexd eenpxd eenpxd enepxd neepxd enepxd neepxd penexd epnexd pneexd npeexd enpexd nepexd xpened pxened xepned expned pexned epxned xpneed pxneed xnpeed nxpeed pnxeed npxeed xenped exnped xneped nxeped enxped nexped penxed epnxed pnexed npexed enpxed nepxed expedn xepedn epxedn pexedn xpeedn pxeedn exepdn xeepdn eexpdn eexpdn xeepdn exepdn epexdn peexdn eepxdn eepxdn peexdn epexdn xpeedn pxeedn xepedn expedn pexedn epxedn expden xepden epxden pexden xpeden pxeden exdpen xedpen edxpen dexpen xdepen dxepen epdxen pedxen edpxen depxen pdexen dpexen xpdeen pxdeen xdpeen dxpeen pdxeen dpxeen exedpn xeedpn eexdpn eexdpn xeedpn exedpn exdepn xedepn edxepn dexepn xdeepn dxeepn eedxpn eedxpn edexpn deexpn edexpn deexpn xedepn exdepn xdeepn dxeepn edxepn dexepn epedxn peedxn eepdxn eepdxn peedxn epedxn epdexn pedexn edpexn depexn pdeexn dpeexn eedpxn eedpxn edepxn deepxn edepxn deepxn pedexn epdexn pdeexn dpeexn edpexn depexn xpeden pxeden xepden expden pexden epxden xpdeen pxdeen xdpeen dxpeen pdxeen dpxeen xedpen exdpen xdepen dxepen edxpen dexpen pedxen epdxen pdexen dpexen edpxen depxen expnde xepnde epxnde pexnde xpende pxende exnpde xenpde enxpde nexpde xnepde nxepde epnxde penxde enpxde nepxde pnexde npexde xpnede pxnede xnpede nxpede pnxede npxede expdne xepdne epxdne pexdne xpedne pxedne exdpne xedpne edxpne dexpne xdepne dxepne epdxne pedxne edpxne depxne pdexne dpexne xpdene pxdene xdpene dxpene pdxene dpxene exndpe xendpe enxdpe nexdpe xnedpe nxedpe exdnpe xednpe edxnpe dexnpe xdenpe dxenpe endxpe nedxpe ednxpe denxpe ndexpe dnexpe xndepe nxdepe xdnepe dxnepe ndxepe dnxepe epndxe pendxe enpdxe nepdxe pnedxe npedxe epdnxe pednxe edpnxe depnxe pdenxe dpenxe endpxe nedpxe ednpxe denpxe ndepxe dnepxe pndexe npdexe pdnexe dpnexe ndpexe dnpexe xpndee pxndee xnpdee nxpdee pnxdee npxdee xpdnee pxdnee xdpnee dxpnee pdxnee dpxnee xndpee nxdpee xdnpee dxnpee ndxpee dnxpee pndxee npdxee pdnxee dpnxee ndpxee dnpxee exendp xeendp eexndp eexndp xeendp exendp exnedp xenedp enxedp nexedp xneedp nxeedp eenxdp eenxdp enexdp neexdp enexdp neexdp xenedp exnedp xneedp nxeedp enxedp nexedp exednp xeednp eexdnp eexdnp xeednp exednp exdenp xedenp edxenp dexenp xdeenp dxeenp eedxnp eedxnp edexnp deexnp edexnp deexnp xedenp exdenp xdeenp dxeenp edxenp dexenp exndep xendep enxdep nexdep xnedep nxedep exdnep xednep edxnep dexnep xdenep dxenep endxep nedxep ednxep denxep ndexep dnexep xndeep nxdeep xdneep dxneep ndxeep dnxeep eendxp eendxp enedxp needxp enedxp needxp eednxp eednxp edenxp deenxp edenxp deenxp endexp nedexp ednexp denexp ndeexp dneexp endexp nedexp ednexp denexp ndeexp dneexp xendep exndep xnedep nxedep enxdep nexdep xednep exdnep xdenep dxenep edxnep dexnep xndeep nxdeep xdneep dxneep ndxeep dnxeep endxep nedxep ednxep denxep ndexep dnexep ependx peendx eepndx eepndx peendx ependx epnedx penedx enpedx nepedx pneedx npeedx eenpdx eenpdx enepdx neepdx enepdx neepdx penedx epnedx pneedx npeedx enpedx nepedx epednx peednx eepdnx eepdnx peednx epednx epdenx pedenx edpenx depenx pdeenx dpeenx eedpnx eedpnx edepnx deepnx edepnx deepnx pedenx epdenx pdeenx dpeenx edpenx depenx epndex pendex enpdex nepdex pnedex npedex epdnex pednex edpnex depnex pdenex dpenex endpex nedpex ednpex denpex ndepex dnepex pndeex npdeex pdneex dpneex ndpeex dnpeex eendpx eendpx enedpx needpx enedpx needpx eednpx eednpx edenpx deenpx edenpx deenpx endepx nedepx ednepx denepx ndeepx dneepx endepx nedepx ednepx denepx ndeepx dneepx pendex epndex pnedex npedex enpdex nepdex pednex epdnex pdenex dpenex edpnex depnex pndeex npdeex pdneex dpneex ndpeex dnpeex endpex nedpex ednpex denpex ndepex dnepex xpende pxende xepnde expnde pexnde epxnde xpnede pxnede xnpede nxpede pnxede npxede xenpde exnpde xnepde nxepde enxpde nexpde penxde epnxde pnexde npexde enpxde nepxde xpedne pxedne xepdne expdne pexdne epxdne xpdene pxdene xdpene dxpene pdxene dpxene xedpne exdpne xdepne dxepne edxpne dexpne pedxne epdxne pdexne dpexne edpxne depxne xpndee pxndee xnpdee nxpdee pnxdee npxdee xpdnee pxdnee xdpnee dxpnee pdxnee dpxnee xndpee nxdpee xdnpee dxnpee ndxpee dnxpee pndxee npdxee pdnxee dpnxee ndpxee dnpxee xendpe exndpe xnedpe nxedpe enxdpe nexdpe xednpe exdnpe xdenpe dxenpe edxnpe dexnpe xndepe nxdepe xdnepe dxnepe ndxepe dnxepe endxpe nedxpe ednxpe denxpe ndexpe dnexpe pendxe epndxe pnedxe npedxe enpdxe nepdxe pednxe epdnxe pdenxe dpenxe edpnxe depnxe pndexe npdexe pdnexe dpnexe ndpexe dnpexe endpxe nedpxe ednpxe denpxe ndepxe dnepxe
Note: these 'words' (valid or invalid) are all the permutations of the word expend. These words are obtained by scrambling the letters in expend.