brake rbake barke abrke rabke arbke brkae rbkae bkrae kbrae rkbae krbae bakre abkre bkare kbare akbre kabre rakbe arkbe rkabe krabe akrbe karbe braek rbaek barek abrek rabek arbek break rbeak berak ebrak rebak erbak baerk aberk beark ebark aebrk eabrk raebk arebk reabk erabk aerbk earbk brkea rbkea bkrea kbrea rkbea krbea breka rbeka berka ebrka rebka erbka bkera kbera bekra ebkra kebra ekbra rkeba kreba rekba erkba kerba ekrba baker abker bkaer kbaer akber kaber baekr abekr beakr ebakr aebkr eabkr bkear kbear bekar ebkar kebar ekbar akebr kaebr aekbr eakbr keabr ekabr rakeb arkeb rkaeb kraeb akreb kareb raekb arekb reakb erakb aerkb earkb rkeab kreab rekab erkab kerab ekrab akerb kaerb aekrb eakrb kearb ekarb
Note: these 'words' (valid or invalid) are all the permutations of the word brake. These words are obtained by scrambling the letters in brake.