leaks elaks laeks aleks ealks aelks lekas elkas lkeas kleas eklas kelas lakes alkes lkaes klaes akles kales eakls aekls ekals keals akels kaels leask elask laesk alesk ealsk aelsk lesak elsak lseak sleak eslak selak lasek alsek lsaek slaek aslek salek easlk aeslk esalk sealk aselk saelk leksa elksa lkesa klesa eklsa kelsa leska elska lseka sleka eslka selka lksea klsea lskea slkea kslea sklea eksla kesla eskla sekla ksela skela lakse alkse lkase klase aklse kalse laske alske lsake slake aslke salke lksae klsae lskae slkae kslae sklae aksle kasle askle sakle ksale skale eaksl aeksl ekasl keasl akesl kaesl easkl aeskl esakl seakl asekl saekl eksal kesal eskal sekal kseal skeal aksel kasel askel sakel ksael skael
Note: these 'words' (valid or invalid) are all the permutations of the word leaks. These words are obtained by scrambling the letters in leaks.