About Thesaurus.com
Thesaurus.com is a company based in Los Altos (United States) founded in 1995 was acquired by IXL Learning in April 2024. Thesaurus.com offers products and services including Synonym of the Day and Word Games. Thesaurus.com operates in a competitive market with competitors including Babbel, Rosetta Stone, Memrise, Learnlight and Lingvist, among others.
- Headquarter Los Altos, United States
- SectorsEducation
- Website category Reference Materials · Dictionaries and Encyclopedias
- Website thesaurus.com
- Social LinkedIn X Facebook
- Acquired by Rock Ventures (Nov 2018)
- InvestorsIXL Learning
& 1 more
- Acquired by
Products & Services of Thesaurus.com
Thesaurus.com offers a comprehensive portfolio of products and services, including Synonym of the Day and Word Games.
Daily feature for exploring synonyms and expanding vocabulary
Interactive puzzles to practice and enhance language skills
Investors in Thesaurus.com
Thesaurus.com has secured backing from 2 investors, including institutional investors. Prominent investors backing the company include IXL Learning and Rock Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Investment holding company | 2007 | rockventures.com | Detroit, United States | |
Personalized instruction in core subjects is delivered via subscriptions. | 1998 | ixl.com | San Mateo, United States |
Investor details for Thesaurus.com
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Timeline of Thesaurus.com
3 dated milestones of Thesaurus.com across 29 years, from founding to its latest funding, stage changes and deals.
- Founded Thesaurus.com is founded.
- Exit Acquired by Rock Ventures.
- Exit Acquired by IXL Learning.
Competitors of Thesaurus.com
Thesaurus.com operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Babbel, Rosetta Stone, Memrise, Learnlight and Lingvist, among others.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| babbel.com | 2007 | Berlin, Germany | $34.2M | 519 | SaaS-based language learning solutions are offered through interactive courses. | |
| rosettastone.com | 1992 | Arlington, United States | $62M | 1,155 | Speech-recognition technology is utilized for language learning software solutions. | |
| memrise.com | 2010 | London, United Kingdom | $24.98M | 40 | Languages are learned via crowdsourced content on an online platform. | |
| learnlight.com | 2007 | Madrid, Spain | – | – | Learning management systems and enterprise courses are provided. | |
| lingvist.com | 2013 | Tallinn, Estonia | $16.09M | 13 | Data-driven adaptive language learning is delivered via SaaS and apps. | |
| ponddy.com | 2015 | San Jose, United States | $13.46M | – | AI-based platform for educators to create and deliver language learning programs | |
| dictionary.com | 1995 | Oakland, United States | – | 2 | English definitions, synonyms, and pronunciations are provided online. | |
| gymglish.com | 2004 | Paris, France | $3.45M | – | Adaptive English lessons are delivered via daily emails. | |
| worddive.com | 2009 | Tampere, Finland | $262,885 | – | Adaptive online courses for multiple languages are offered. | |
| fluent-forever.com | 2013 | Chicago, United States | $5.47M | – | Language learning resources are offered via personalized flashcards. |
Detailed competitors of Thesaurus.com
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Web traffic of Thesaurus.com
The website of Thesaurus.com (thesaurus.com) receives about 15.1M visits a month and ranks #4,451 among all websites worldwide, #49 in Dictionaries and Encyclopedias.
- Monthly visits15.1M
▲ 7.8% vs previous month
- Unique visitors5.5M
per month
- Global rank#4,451
among all websites
- Category rank#49
Reference Materials · Dictionaries and Encyclopedias
- Bounce rate45%
- Pages per visit2.9
- Average visit4 min 04 sec
- DevicesDesktop 72% Β· Mobile 28%
Websites whose visitors overlap most with Thesaurus.com. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| merriam-webster.com | 100% | – | #895 | View details | |
wordhippo.com | wordhippo.com | 83% | – | #7,013 | β |
powerthesaurus.org | powerthesaurus.org | 76% | – | #20,299 | β |
dictionary.cambridge.org | dictionary.cambridge.org | 75% | – | #1,207 | β |
| dictionary.com | 75% | 9.7M | #6,973 | View details | |
| β’β’β’β’β’β’β’β’β’β’ | β’β’β’β’β’β’.com | β’β’% | β’.β’M | #β’β’β’β’β’ | β |
| β’β’β’β’β’β’β’β’β’β’ | β’β’β’β’β’β’.com | β’β’% | β’.β’M | #β’β’β’β’β’ | β |
| β’β’β’β’β’β’β’β’β’β’ | β’β’β’β’β’β’.com | β’β’% | β’.β’M | #β’β’β’β’β’ | β |
All 40 similar websites and full traffic analytics for Thesaurus.com
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- Audience overlap
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Latest news on Thesaurus.Com
Complete news archive for Thesaurus.com
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Similar companies to Thesaurus.com
10 companies that operate in the same segment as Thesaurus.com (Corporate & Professional Learning Platforms), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Developer of a platform providing gamified language learning through interactive exercises | 2011 | Pittsburgh, Pennsylvania, United States | USD 183.3 M | USD 748.02 M | 830 | |
Professional certification training courses are provided via an online platform. | 2015 | Mumbai, Maharashtra, India | USD 371.77 M | USD 143.62 M | 7,112 | |
Cloud-based LMS platform for IT industry | 2004 | Farmington, United States | USD 235.41 M | USD 4.95 M | 260 | |
Professional certification programs are delivered through a mobile platform. | 2010 | San Francisco, California, United States | USD 80.82 M | USD 84.24 M | 1,661 | |
An online platform for multi-course education is operated. | 2012 | Mountain View, California, United States | USD 443.17 M | USD 757.5 M | 1,260 | |
Online courses in creative fields are delivered by celebrity experts. | 2012 | San Francisco, California, United States | USD 461.4 M | – | 623 | |
Executive education programs from global universities are offered to professionals. | 2010 | Singapore, Singapore | USD 961.07 M | – | – | |
Vernacular-based hyperlocal platform for online programming mentoring is developed. | 2014 | Chennai, Tamil Nadu, India | USD 3.9 M | USD 4.13 M | 496 | |
Mobile and cloud-based resources for medical exams are delivered. | 2012 | Berlin, Berlin, Germany | USD 291.94 M | – | – | |
One-to-one online English tutoring is provided by 51Talk. | 2011 | Beijing, China | USD 89 M | USD 95.85 M | 539 |
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Frequently Asked Questions about Thesaurus.com
Thesaurus.com was founded in 1995.
Thesaurus.com is headquartered in Los Altos, United States. It is registered at Los Altos, California, United States.
Thesaurus.com was founded in 1995 and is based in Los Altos, United States. An online platform is operated to deliver English synonyms, antonyms, and adjectives. Results can be filtered by relevance, complexity, length, word origins, and other criteria. Native mobile applications are available for iOS and Android devices. The service functions within the digital language resources sector, supporting user queries for word-related information.
Thesaurus.com's top competitors include Babbel, Rosetta Stone and Lingvist.
Thesaurus.com offers Synonym of the Day and Word Games.
Thesaurus.com has 2 investors. Key investors include IXL Learning, and Rock Ventures.
Yes. Thesaurus.com was acquired by Rock Ventures in November 2018.
The website of Thesaurus.com receives about 15.1 million visits a month and ranks #4,451 among all websites worldwide.

