Lookup Definitions Online

Name: Lookup Definitions Online
Rating: 4.588235294117647 (85 reviews)
Author: pMan

Lookup free online dictionary and thesaurus sites for definitions.

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Lookup Definitions Online is a Chrome extension designed for easy and fast access to word meanings, synonyms, and etymologies from popular free online resources. It integrates top dictionaries such as Cambridge Advanced Learner's Dictionary, Oxford Advanced Learner's Dictionary, Collins English Dictionary, and the Online Etymology Dictionary all in one place. This handy tool simplifies the process of looking up definitions and thesaurus entries, enhancing your reading and writing experience.

Users can also request the addition of their favorite dictionaries to customize their lookup options. Whether you're a student, writer, or language enthusiast, this extension provides a comprehensive language resource accessible directly from your browser.

Extension Education Productivity Writing

By:

pMan

Users:

5,000

Rating:

4.59

(85)

Version:

2.5 Last updated: 2024-09-20

Creation date:

2019-10-20

Risk:

Permissions:

contextMenus
storage
scripting

Host permissions:

<all_urls>

Size:

275.00KB

Email:

pr*****@gmail.com

URLs:

Full description:

Source:

Chrome Web Store

Data ingested on:

2025-07-08

Ranking

# 12,749 ▲ 9

Other rankings

#72 in Education ▲ 3 #11 in definition keyword 31 #13 in lookup keyword 14 ▼ 3 #16 in thesaurus keyword 25 #251 in dictionary keyword 49 ▼ 14

User reviews

Users appreciate the extension's convenience in accessing multiple dictionaries and thesaurus resources via the right-click menu, which supports language learning and writing tasks. However, common issues include some dictionaries not functioning, lack of a direct search feature, and the opening of definitions in new windows or tabs rather than inline popups. Users also find the menu options overwhelming and desire more streamlined navigation and customization. Occasional stability problems causing the extension to uninstall itself have also been reported.

Pros

Allows users to select from multiple dictionaries in the right-click context menu.
Provides easy and convenient access to word definitions and thesaurus entries.
Displays definitions in a popup within the same page, enhancing usability.
Supports customization for dictionary selection and display preferences.
Offers broad dictionary and thesaurus options that improve language learning and writing.

Cons

Some dictionaries, including American English and Investopedia, do not work properly.
Definitions open in new windows or tabs rather than inline popups, which some users dislike.
The extension lacks a search box for direct lookup without highlighting words.
The interface has too many dictionary choices, causing complexity and nested menu navigation issues.
Occasional bugs cause the extension to remove itself from the extensions list, requiring reinstallation.

Recent reviews

i use it to learn english, but it would be awesome if there was an option to just open definitions in a new tab instead of a new window

Lu*****, 2024-08-10

this is really nice, but for some reason after I change dictionaries the list stays the same, it would be great if you could choose one dictionary and a button for it would popup every time you double click the word

An*****, 2024-07-29

great extension, could you add howjsay.com to it please

Mo*****, 2021-11-06

View all user reviews ›

Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Lookup Definitions Online requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension.

Lookup Definitions Online has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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