Suggested sort: Either sort by the initial sound of the word (all will be the same!) Or sort by the spelling of the n sound Sounds like g Sounds like k Sounds like n gn kn knock know knee gnat gnaw knit kneel known knead knuckle knight knickers gnash gnarl Kn and gn at the start of words making /n/ sound Both consonants were sounded in old versions of English Cut this top row off before you give the sort to pupils!