crude rcude curde ucrde rucde urcde crdue rcdue cdrue dcrue rdcue drcue cudre ucdre cdure dcure udcre ducre rudce urdce rduce druce udrce durce crued rcued cured ucred ruced urced creud rceud cerud ecrud recud ercud cuerd ucerd ceurd ecurd uecrd eucrd ruecd urecd reucd erucd uercd eurcd crdeu rcdeu cdreu dcreu rdceu drceu credu rcedu cerdu ecrdu recdu ercdu cderu dceru cedru ecdru decru edcru rdecu drecu redcu erdcu dercu edrcu cuder ucder cduer dcuer udcer ducer cuedr ucedr ceudr ecudr uecdr eucdr cdeur dceur cedur ecdur decur edcur udecr duecr uedcr eudcr deucr educr rudec urdec rduec druec udrec durec ruedc uredc reudc erudc uerdc eurdc rdeuc dreuc reduc erduc deruc edruc uderc duerc uedrc eudrc deurc edurc
Note: these 'words' (valid or invalid) are all the permutations of the word crude. These words are obtained by scrambling the letters in crude.