Many works of Syriac literature, including some now lost, were translated into Sogdian, a language of the Iranian family. This Dictionary makes the whole material accessible to both Iranists and Syriacists, giving a full semantic and morphological analysis of the attested Christian Sogdian vocabulary. The first part, arranged by Sogdian lemmata, also indicates the various Syriac words which each Sogdian form translates, while the second part, arranged by Syriac lemmata, shows all possible ways of translating any Syriac word into Sogdian. A comprehensive English index adds to the utility of the work. Since the appearance of the first edition of this Dictionary in 2016, a series of major text-editions have completed the publication of the whole extant Christian Sogdian literature, making this the appropriate time for a new and complete edition of the Dictionary.