cease ecase caese acese eacse aecse cesae ecsae cseae sceae escae secae casee acsee csaee scaee ascee sacee easce aesce esace seace asece saece ceaes ecaes caees acees eaces aeces ceeas eceas ceeas eceas eecas eecas caees acees ceaes ecaes aeces eaces eaecs aeecs eeacs eeacs aeecs eaecs cesea ecsea cseea sceea escea secea ceesa ecesa ceesa ecesa eecsa eecsa cseea sceea cesea ecsea secea escea eseca seeca eesca eesca seeca eseca casee acsee csaee scaee ascee sacee caese acese cease ecase aecse eacse cseae sceae cesae ecsae secae escae asece saece aesce easce seace esace easec aesec esaec seaec aseec saeec eaesc aeesc eeasc eeasc aeesc eaesc eseac seeac eesac eesac seeac eseac aseec saeec aesec easec seaec esaec
Note: these 'words' (valid or invalid) are all the permutations of the word cease. These words are obtained by scrambling the letters in cease.