cubby ucbby cbuby bcuby ubcby bucby cubby ucbby cbuby bcuby ubcby bucby cbbuy bcbuy cbbuy bcbuy bbcuy bbcuy ubbcy bubcy ubbcy bubcy bbucy bbucy cubyb ucbyb cbuyb bcuyb ubcyb bucyb cuybb ucybb cyubb ycubb uycbb yucbb cbyub bcyub cybub ycbub bycub ybcub ubycb buycb uybcb yubcb byucb ybucb cubyb ucbyb cbuyb bcuyb ubcyb bucyb cuybb ucybb cyubb ycubb uycbb yucbb cbyub bcyub cybub ycbub bycub ybcub ubycb buycb uybcb yubcb byucb ybucb cbbyu bcbyu cbbyu bcbyu bbcyu bbcyu cbybu bcybu cybbu ycbbu bycbu ybcbu cbybu bcybu cybbu ycbbu bycbu ybcbu bbycu bbycu bybcu ybbcu bybcu ybbcu ubbyc bubyc ubbyc bubyc bbuyc bbuyc ubybc buybc uybbc yubbc byubc ybubc ubybc buybc uybbc yubbc byubc ybubc bbyuc bbyuc bybuc ybbuc bybuc ybbuc
Note: these 'words' (valid or invalid) are all the permutations of the word cubby. These words are obtained by scrambling the letters in cubby.