Bradford's Crossword Key Dictionary
'Eight letters, the fourth letter is x'. In answer to such old refrains, this dictionary lists over 480,000 words, organized into chapters by length – from four to fifteen letters – and then sorted alphabetically according to each letter position within the word. So you can take your pick from flexible, flexibly, fraxinus, gloxinia, inexpert, quixotic and Vauxhall. There is also an introduction with tips on solving crosswords from the Dictionary's namesake, crossword expert Anne Bradford.