Synonimy is a free dictionary of Polish synonyms developed by Future Mind Sp. z o. o. that is now available on Android devices. The dictionary was inspired by Jerome Rodale's The Synonym Finder, which is known for its extensive collection of synonyms. Synonimy aims to provide a similar experience for Polish speakers by offering a comprehensive collection of synonyms arranged in alphabetical order for easy access.

The dictionary includes a vast number of entries, and each password has been created individually, distinguishing their separate meanings and providing as many phrases as possible. The choice of synonyms is very rich, with 75 synonyms given to some words and 121 to adjectives. Verbs are treated separately in the form of accomplished and imperfect, taking into account the returnable forms.

The dictionary also includes obsolescent words, historicisms, and profanities. In addition to words, expressions are also extensively covered. The paper version of the dictionary had two editions, and the second edition contained over 42,000 passwords on about 1200 pages. The online version of the dictionary is continually updated to provide users with new entries.