arene raene aerne earne reane erane arnee ranee anree naree rnaee nraee aenre eanre anere naere enare neare renae ernae rneae nreae enrae nerae areen raeen aeren earen reaen eraen areen raeen aeren earen reaen eraen aeern eaern aeern eaern eearn eearn reean erean reean erean eeran eeran arnee ranee anree naree rnaee nraee arene raene aerne earne reane erane anere naere aenre eanre neare enare rneae nreae renae ernae nerae enrae aener eaner aneer naeer enaer neaer aeenr eaenr aeenr eaenr eeanr eeanr aneer naeer aener eaner neaer enaer enear neear eenar eenar neear enear renea ernea rneea nreea enrea nerea reena erena reena erena eerna eerna rneea nreea renea ernea nerea enrea enera neera eenra eenra neera enera
Note: these 'words' (valid or invalid) are all the permutations of the word arene. These words are obtained by scrambling the letters in arene.