Definitions.net

Definitions.net

Get instant dictionary definitions for any word or term that hits you anywhere on the web!

What is Definitions.net?
Definitions.net is a Firefox add-on that offers free multilingual dictionary services. It provides instant definitions for any word or term on the web. Just select a word and click on the extension icon, a pop-up will show all possible definitions from resources including Random House College Dictionary, Princeton WordNet, Webster Dictionary, and more. Note: the extension will not work in tabs open prior to installation. Reload open tabs or restart Firefox after installation.
Merlin
Stats
By: STANDS4
Users: 594 ▲ 12
Rating: 4.62 (13)
Version: 1.0.7 (Last updated: 2019-12-17)
Creation date: 2018-02-12
Weekly download count: 10
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • activeTab
  • storage
  • contextMenus
Size: 587.45K
URLs: Website
Stats date:

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Merlin
Summary

Definitions.net is a free multilingual dictionary that provides instant definitions from many respected reference resources such as the Random House College Dictionary, Princeton WordNet, Wiktionary, Webster Dictionary, U.S. National Library of Medicine, DOD Dictionary of Military and Associated Terms and more.

To use this extension simply select a word on any web page you're visiting and click on the extension icon. A pop-up window will open with all possible definitions for the selected word.

Note: The extension will not work in tabs that were open prior to installation. After installing this extension, either reload your open tabs or restart Firefox.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Finds definitions not listed in major dictionaries
  • Useful and quite handy
  • Provides pronunciation and example usage
  • Good website for good answers
  • Works great
Cons
  • Interface not as convenient as expected
  • Extension clutters toolbar
  • The name of the extension is too long
  • Issues with scroll bars within the extension
  • Popup window can be cut off
Most mentioned
  • Provides uncommon definitions
  • Issues with interface and toolbar clutter
  • Scroll bar issues
Recent reviews
Major dictionaries said the word did not exist, but Definitions.net had it, along with an example, and how you pronounce it. Awesome!
by Bruce, 2022-12-13
View all user reviews
Safety
Risk impact

Definitions.net may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

Definitions.net has earned a fairly good reputation and likely can be trusted.

Upgrade to see risk analysis details
Screenshots