Silicon Valley Dictionary - Urban dictionary meets Silicon Valley
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Writefull Thesaurus - A Google Docs add-on that uses AI to give you synonyms
GoldenDict - The program has the following features: Use of WebKit for an accurate articles' representation, complete with all formatting, colors, images and links.
Dictionary Anywhere - Dictionary Anywhere is an open-source and easy-to-use browser extension for Mozilla Firefox and Google Chrome that allows you to check definitions easily while browsing the web.
DeepL Translator - DeepL Translator is a machine translator that currently supports 42 language combinations.