Vocabup.com is a thesaurus training software that helps you exercise the most basic words together with all their senses and most frequent synonyms. That helps you improve your vocabulary on the fly! You can also use this website just to look after words if you are searching for alternative words or if you want to get explained an English word in English. This thesaurus software is based on the famous wordnet thesaurus by the princeton university. It is well known for being a large network of words. How boring it is to learn raw lists of vocab! Vocabup.com lets you learn a list words as a network of words. For nouns and verbs you get umbrella terms and species besides their synonyms and definitions. This gives a much richer understanding and lets you get a strong vocabulary with a much more joyful experience!