We celebrate 30 years in 2026! Founded April, 1996
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Welcome to OneLook® Dictionary Search
Think of this web site as a search
engine for English words and phrases: If you have a word for which you'd like a definition,
we'll shuttle you to the web-based dictionaries that define
that word. If you don't know the right word to use, we'll help you find it.
No word is too obscure: More than 19 million words in more than 1000 online dictionaries
are indexed by the OneLook® search engine.
What can you do at OneLook.com?
- Define words: Type a word into the search box on the front page to retrieve
a list of dictionary web sites that define that word. Be sure "Find definitions" is selected.
- Find words: Type a pattern consisting of letters and the wildcards *
and ? to retrieve a list of words matching your pattern. The asterisk (*)
matches any number of letters or symbols. The question mark (?) matches exactly
one letter or symbol. (More info on patterns and the
Reverse Dictionary.)
Please read our FAQ or send us feedback if you have any
questions.
When you're ready to try it out, simply return to the front page.
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Access OneLook® Dictionary Search from any site!
If you want to be able to highlight any word on any website and look it up on OneLook, drag the following link into your browser's "links" toolbar:
OneLook
Then, when you come across a word you'd like to look up on OneLook, simply highlight the word and click on the button you just added.
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Problematic word associations
Some of the features on OneLook, such as the OneLook Thesaurus
and reverse dictionary, are enabled by a statistical analysis
of the words in a large collection of books written in the past
century. A handful of times we've found that this analysis can lead
the system to suggest word associations that reflect racist or harmful
stereotypes present in the source material, and we remove them. If you
see one of these, please know that we do not endorse the association
itself, and we'll seek to remove it from the site if you report it to
us via the feedback box below.
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Privacy policy
No personally identifying information is ever collected on this site
or by any add-ons or apps associated with any Datamuse-owned website.
In some cases, you may voluntarily provide personal information in
response to a specific query or by filling out a form such as the
feedback form below. This information is not passed on to advertisers or used for
any purpose other than what is stated.
OneLook uses cookies only to store the customization information
that you can set via the "Customize" link at the top of this page.
If you wish to disable cookies in your browser, follow the steps outlined on
this page.
OneLook uses third-party advertising companies to serve ads.
These companies might separately place or recognize a cookie file on your browser in the
course of delivering advertisements to this site. These companies might use
information (not including your name, address email address or telephone
number) about your visits to this and other Web sites in order to provide
advertisements about goods and services of interest to you. On OneLook You can disable
banner advertisements on this site
on the Customize page.
The Google Docs add-on
for OneLook, the Spruce search engine,
and CivicSearch, all send search
terms securely to an API server maintained by
Datamuse,
the owner of these sites.
The server keeps a log of the queries made to the service in the last
24 hours, but not beyond that, and never shares this data with any third party.
Datamuse saves no long-term usage data other
than a count of the number of requests.
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Got a suggestion, question, or bug report? Send a message to the developers below!
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