Word Reservoir is a simple to use, efficient vocabulary application for language learning. It is an application that helps you to record the basic words you have to learn while learning a new language, the word-concepts you have to learn for work and the words you encounter in daily life very easily. You can repeat the words you have recorded anywhere, read them in emergency situations, delete and update them with one move. You can also hide the meanings of words to memorize them. Unlike Word Reservoir's competitors, you don't stick to a single language, you can choose according to 2 languages you want, and you can learn new languages and concepts easily and effectively throughout your life.