dictionaries

Install command: 
brew install --cask dictionaries

Name: Dictionaries

Translate words without ever opening a dictionary

https://dictionaries.io/

Cask JSON API: /api/cask/dictionaries.json

Cask code: dictionaries.rb on GitHub

Current version: 2.7

Requirements: macOS >= 10.14

Analytics:

Installs (30 days)
dictionaries 44
Installs (90 days)
dictionaries 113
Installs (365 days)
dictionaries 460