HORNBOOK Scrabble 17 Words With Friends 18 Scrabble letter values: H4O1R1N1B3O1O1K5 = 17 Definition noun a primer that provides instruction in the rudiments or basic skills of a branch of knowledge. See all 40 words you can make from HORNBOOK → 8-letter words Words starting with H Words ending with K ← Unscramble different letters