DichThat
Data Sources
DichThat combines macOS system frameworks with bundled offline language data.
Last updated: August 28, 2026Apple Translation
English–Vietnamese translation is handled on your Mac. Language models are supplied and managed by macOS.
macOS system voices
Pronunciation playback uses AVSpeechSynthesizer and the voices installed on your Mac.
Open English WordNet 2025
Provides English meanings, examples, parts of speech, and synonyms. Derived from Princeton WordNet 3.1 and licensed under CC BY 4.0.
CMU Pronouncing Dictionary
Provides US English pronunciation data used to generate IPA. DichThat bundles pinned revision 74790861f652b15e4ac49015a90074ad62a27690.