gnaws ngaws ganws agnws nagws angws gnwas ngwas gwnas wgnas nwgas wngas gawns agwns gwans wgans awgns wagns nawgs anwgs nwags wnags awngs wangs gnasw ngasw gansw agnsw nagsw angsw gnsaw ngsaw gsnaw sgnaw nsgaw sngaw gasnw agsnw gsanw sganw asgnw sagnw nasgw ansgw nsagw snagw asngw sangw gnwsa ngwsa gwnsa wgnsa nwgsa wngsa gnswa ngswa gsnwa sgnwa nsgwa sngwa gwsna wgsna gswna sgwna wsgna swgna nwsga wnsga nswga snwga wsnga swnga gawsn agwsn gwasn wgasn awgsn wagsn gaswn agswn gsawn sgawn asgwn sagwn gwsan wgsan gswan sgwan wsgan swgan awsgn wasgn aswgn sawgn wsagn swagn nawsg anwsg nwasg wnasg awnsg wansg naswg answg nsawg snawg asnwg sanwg nwsag wnsag nswag snwag wsnag swnag awsng wasng aswng sawng wsang swang
Note: these 'words' (valid or invalid) are all the permutations of the word gnaws. These words are obtained by scrambling the letters in gnaws.