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25 Free Dictionary & Thesaurus (Online & Softwares)

25 Free Dictionary & Thesaurus (Online & Softwares)

One usually read to increase his or her vocabulary, or simply to explore different writing styles and the beauty of the English language. Depending on your reading style or approach, you may check the meaning of a certain word while you’re reading or you may just highlight and return to it later. With this new discovery, some may explore further to expand it with similar words or phrases that one may use. Having this simple process repeated in a consistent manner, it is no doubt that your internal bank of word depositories will increase greatly.

But what are explorations and new discoveries without the proper tools? Most of ebook readers these days have a built-in dictionary or thesaurus, but what happens if you’re using a mobile phone to read or simply more of a physical book person? A physical dictionary of course! That’s right, but what you’ll find below are 25 of the most searched for, online and software based dictionaries and thesaurus. 99% of them are free except a few which require subscriptions for additional premium features. A couple of them display the results in a very interactive graphical manner, so be prepared for a different kind of presentation. Have fun exploring and do share with us your thoughts and ideas!

25 Free Dictionary & Thesaurus (Online & Software)

  1. Roget’s Thesaurus by Peter Mark Roget (All formats)
    First published in 1911, last updated 2004.
  2. Synonyms by Word Reference (Online)
    The WordReference English Synonyms provides users with a comprehensive collection of more than 24,000 English words.
  3. Synonymy by (Online)
    English, Spanish & French.
  4. Synonym by Leaf Group (Online)
    Utilizes the WordNet project.
  5. Thesaurus by Cambridge Dictionary (Online)
    Mainly a dictionary but comes with a thesaurus.
  6. Thesaurus by Collins Dictionary (Online)
    Hundreds of thousands of synonyms and antonyms arranged by meaning and with key synonyms highlighted. Has audio pronounciations.
  7. Visual Thesaurus by Farlex (Online)
    Free Thesaurus is a comprehensive online thesaurus of synonyms, antonyms, and related words. The thesaurus contains more than 145,800 unique entries from three top sources: Collins Thesaurus of the English Language – Complete and Unabridged, The American Heritage Roget’s Thesaurus, and WordNet.
  8. Thesaurus by Power Thesaurus (Online)
    Built by writers for writers. 3 million terms, 77 million synonyms and 4 million antonyms.
  9. YourDictionary by LoveToKnow (Online)
    Easy to understand definitions, pronounciation help, examples, etymology and a lot other features.
  10. Thesaurus by Macmillan (Online)
    More than just a list of synonyms, this unique thesaurus draws distinctions between similar words and helps you choose just the word you need.
  11. Thesaurus by Merriam-Webster (Online)
    Search more than 275,000 synonyms, antonyms, related words, and idiomatic phrases.
  12. Thesaurus by LLC (Online)
    Over 3 million synonyms and antonyms.
  13. Synonym Finder by Word Hippo (Online)
    An online website and application providing a range of tools related to the use of words for creative and recreational purposes such as writing, poetry, translations, word games, etc.
  1. Lexico by Oxford (Online)
    Hundreds of thousands of synonyms, antonyms, definitions, and pronunciations for English and other languages, derived from their language research and expert analysis.
  2. WordWeb Pro by WordWeb Software (Software (Windows))
    Full dictionary and thesaurus for American, British, Canadian, Australian, Indian, and global English.
  3. Thesaurus by LingvoSoft Online (Online)
    Contains more than 340,000 entries and cross-references to related words. Each thesaurus entry contains a brief definition giving the meanings and providing links to similar entries, phrases and idioms within the thesaurus.
  4. Visual Thesaurus by ThinkMap (Online)
    The Visual Thesaurus is an interactive dictionary and thesaurus which creates word maps that blossom with meanings and branch to related words. 14 day trial, requires subscription.
  5. Visual Dictionary & Thesaurus by GraphWords (Online)
    A free English visual dictionary and thesaurus that helps you find the meanings of words and show connections among associated words. You can easily see the meaning of each by simply placing the mouse cursor over it.
  6. Free Thesaurus for MacOS by Nisus (Software (MAC))
    A fast electronic thesaurus that works with any services-aware application including Safari, Apple Mail, TextEdit, and more. Nisus Thesaurus integrates seamlessly with Nisus Writer Pro and Nisus Writer Express. Contains over 120,000 words, WordNet based database & with built-in glossary.
  7. Ultimate Dictionary by Creative Side (Software (Windows))
    A complete set of English, Spanish, French and Polish word references, including dictionaries, thesauruses and glossaries.
  8. English Dictionary and Thesaurus by TheSage (Software (Windows & Android))
    Includes indexes, senses, etymologies, thesaurus, examples of use & pronounciations.
  9. LingoPad by Ego4U (Software (Windows))
    English, German, Spanish, Italian, French, Japanese, Chinese, Turkish, Kurdish, Norwegian & Arabic.
  10. The Open Thesaurus by Artha (Software (Windows & Linux))
    Offline English Thesaurus based on WordNet, which is a large, lexical database of English developed at Princeton University.
  11. Lingoes Dictionary by Lingoes Project (Software (Windows))
    Lingoes is an easy and intuitive dictionary and text translation software, It offers lookup dictionaries, full text translation, capture word on screen, translate selected text and pronunciation of words in over 80 languages.
  12. GoldenDict by Konstantin Isakov (Software (Windows & Linux))
    Supports multiple dictionary formats, such as Babylon, StarDict, and WordNet.