Reverse Dictionary - Describe a concept and get back a list of words
Amazon Comprehend - Discover insights and relationships in text
Silicon Valley Dictionary - Urban dictionary meets Silicon Valley
FuzzyWuzzy - FuzzyWuzzy is a Fuzzy String Matching in Python that uses Levenshtein Distance to calculate the differences between sequences.
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.
spaCy - spaCy is a library for advanced natural language processing in Python and Cython.