crane rcane carne acrne racne arcne crnae rcnae cnrae ncrae rncae nrcae canre acnre cnare ncare ancre nacre rance arnce rnace nrace anrce narce craen rcaen caren acren racen arcen crean rcean ceran ecran recan ercan caern acern cearn ecarn aecrn eacrn raecn arecn reacn eracn aercn earcn crnea rcnea cnrea ncrea rncea nrcea crena rcena cerna ecrna recna ercna cnera ncera cenra ecnra necra encra rneca nreca renca ernca nerca enrca caner acner cnaer ncaer ancer nacer caenr acenr ceanr ecanr aecnr eacnr cnear ncear cenar ecnar necar encar anecr naecr aencr eancr neacr enacr ranec arnec rnaec nraec anrec narec raenc arenc reanc eranc aernc earnc rneac nreac renac ernac nerac enrac anerc naerc aenrc eanrc nearc enarc
Note: these 'words' (valid or invalid) are all the permutations of the word crane. These words are obtained by scrambling the letters in crane.