 This is an alphabetic list of Speedwords (between 3,00 and 10,000 depending upon the edition) with their English equivalent, as well as an English-to-Speedwords lookup list.The vocabulary contains an introductory commentary by Dutton which is valuable for understanding and using the dictionary.Depending upon when they were published, they may be called "Dutton Speedwords, "Dutton Double Speedwords", "Duttom Youth Speedwords" or "Dutton World Speeedwords".