Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
U-Dictionary - U-Dictionary is one of the sleekest dictionary applications, which helps in removing the language hurdles for its users and is available in 12 different languages.
BabelNet - The largest multilingual encyclopedic dictionary and semantic network
English to Urdu Dictionary - English to Urdu Dictionary is one of the best language learning application which emphasis on pronunciation of difficult words.
LibreTranslator - Android translation app with translations from LibreTranslate
DeepL Translator - DeepL Translator is a machine translator that currently supports 42 language combinations.