Thesaurus

A really fast thesaurus... with lots of synonyms.

Terms of Service — last updated June 2026.

These terms govern your use of the Thesaurasize website at thesaurasize.com and the Thesaurasize mobile apps for iOS and Android (together, the "Service"). By using the Service you agree to these terms. If you do not agree, please do not use the Service.

The Service

Thesaurasize is a free online thesaurus and dictionary that lets you look up synonyms and definitions. We provide it on an "as is" and "as available" basis and may change, suspend, or discontinue any part of it at any time.

Acceptable use

You agree to use the Service only for lawful, personal, and reasonable purposes. You agree not to:

• scrape, crawl, or bulk-download our data, or access the Service through automated means, except as permitted by our robots.txt;
• place excessive load on, disrupt, or attempt to gain unauthorized access to the Service or its systems;
• resell, redistribute, or create a competing product from our data; or
• submit unlawful, abusive, or infringing content through any form.

Content and intellectual property

Definitions and initial synonym lists are derived from Wiktionary and the Princeton WordNet dictionary. Wiktionary content is available under the GNU FDL and remains subject to its license. The Thesaurasize name, design, and software are owned by us. Anything you submit through the "recommend a word" form may be used to improve the Service.

Advertising

The Service is supported by advertising. The website shows ads through Infolinks and other partners, and the mobile apps show ads through Google AdMob. Your use of the Service is also subject to our Privacy Policy.

Disclaimer

Thesaurasize is a reference tool. We do not guarantee that definitions, synonyms, or other content are accurate, complete, or current, and you should not rely on them as professional advice. To the fullest extent permitted by law, the Service is provided without warranties of any kind.

Limitation of liability

To the fullest extent permitted by law, Thesaurasize and Next Wave Services will not be liable for any indirect, incidental, or consequential damages, or for any loss arising from your use of, or inability to use, the Service.

Changes and governing law

We may update these terms from time to time; the current version will always be posted here with a new date, and your continued use means you accept the changes. These terms are governed by the laws of the State of North Carolina, USA, without regard to its conflict-of-laws rules.

Contact

Questions about these terms? Get in touch.