WHAT by YAHYA MANSOUB
Highlight words and instantly view clean dictionary definitions.
Extension Metadata
About this extension
WHAT is a simple dictionary extension that helps you understand words while browsing.
Highlight a word on any webpage and WHAT can show its definition in a clean popup. You can also use manual mode, where highlighted words are saved and shown only when you open the extension.
Features:
- Highlight words to get instant definitions
- Choose between automatic popup mode and manual extension mode
- Select different dictionary languages
- Save words locally for later review
- Manage saved word history
- Clean yellow knowledge-themed interface
- No analytics, ads, or tracking
Saved words and settings are stored locally in your browser. WHAT only sends highlighted words to dictionaryapi.dev when it needs to fetch a definition.
Highlight a word on any webpage and WHAT can show its definition in a clean popup. You can also use manual mode, where highlighted words are saved and shown only when you open the extension.
Features:
- Highlight words to get instant definitions
- Choose between automatic popup mode and manual extension mode
- Select different dictionary languages
- Save words locally for later review
- Manage saved word history
- Clean yellow knowledge-themed interface
- No analytics, ads, or tracking
Saved words and settings are stored locally in your browser. WHAT only sends highlighted words to dictionaryapi.dev when it needs to fetch a definition.
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Permissions and data
Required permissions:
- Access your data for all websites
Optional permissions:
- Access your data for api.dictionaryapi.dev
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 226.44 KB
- Last updated
- 5 days ago (Jun 3, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection