Look-it-up is a search tools chrome extension. it's a free extension , it has 236 active users since released its first version, it earns an average rating of 4.50 from 2 rated user, last update is 3643 days ago.
A simple extension that will look up selected text on a number of different dictionary sites. You have the choice of dictionary.com, merriam-webster.com (dictionary and thesaurus), thefreedictionary.com, thesaurus.com, urbandictionary.com, wikipedia.org, wiktionary.org, and yourdictionary.com to look selected terms up with. There is an options page to enable or disable the different menu items included. To view the source code for this extension and many more visit: http://timothytocci.com/
You could download the latest version crx file or older version files and install it.
English.
100% user give 4-star rating. Read reviews of look-it-up
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Does as advertised. It's best feature: no permissions required