Open Source Dictionaries & Translation Tools Projects
Dictionary software, translation apps, and offline lexical reference tools.
English Dictionary OpenSource
An open, queryable English dictionary dataset with 176,023 definitions in CSV, SQLite3, and MySQL formats.
Alternative to: 
Merriam-Webster
Merriam-Webster
ODict
An open-source dictionary file format and toolchain with instant offline lookups, full-text search, and APIs for Rust, Python, and JavaScript.
Alternative to: 
Babylon
Babylon