This revised and substantially enlarged edition of the Dictionary of Manichaean Sogdian and Bactrian covers the vocabulary of all Manichaean (and anti-Manichaean) texts in these languages (material published up to 2020, including short passages and even individual words which have been cited in print). Unlike the first edition, it also contains a substantial amount of material from texts which are still unpublished, especially unusual or otherwise unattested words and expressions. As before, the volume contains a full bibliography, references to discussions in the scholarly literature, and numerous corrections to previously published readings and interpretations. It is completed by an English index. Providing an up-to-date analysis of all published Manichaean material in the Eastern Middle Iranian languages, the new edition of the Dictionary will continue to be an essential tool for everyone interested in Manichaeism, Iranian languages, or Central Asian history.