nikab inkab nkiab kniab iknab kinab niakb inakb naikb anikb iankb ainkb nkaib knaib nakib ankib kanib aknib ikanb kianb iaknb aiknb kainb akinb nikba inkba nkiba kniba iknba kinba nibka inbka nbika bnika ibnka binka nkbia knbia nbkia bnkia kbnia bknia ikbna kibna ibkna bikna kbina bkina niabk inabk naibk anibk ianbk ainbk nibak inbak nbiak bniak ibnak binak nabik anbik nbaik bnaik abnik banik iabnk aibnk ibank biank abink baink nkabi knabi nakbi ankbi kanbi aknbi nkbai knbai nbkai bnkai kbnai bknai nabki anbki nbaki bnaki abnki banki kabni akbni kbani bkani abkni bakni ikabn kiabn iakbn aikbn kaibn akibn ikban kiban ibkan bikan kbian bkian iabkn aibkn ibakn biakn abikn baikn kabin akbin kbain bkain abkin bakin
Note: these 'words' (valid or invalid) are all the permutations of the word nikab. These words are obtained by scrambling the letters in nikab.