Select any word or phrase on a webpage to understand its contextual meaning
Users
15
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
6
0 in 30 days
Store rank
#165K
#138K among extensions
Version
1.0
updated 1 Feb 2026
Users
monthly, 9 months
Latest, 16 Oct 2026:15 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 16 Oct 2026:6 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About rhino
Ever come across a word, phrase, or reference on a webpage that you don't quite understand?
Rhino makes it effortless to get clear, contextual explanations without leaving the page.
How It Works
1. Select any text on a webpage
2. Hover over your selection for a moment
3. Get an instant AI-powered explanation that takes into account the full context of the page you're reading.
That's it. No copying and pasting into a search engine. No opening new tabs. No losing your place. Rhino brings the explanation to you, right where you need it.
Why Context Matters
Traditional dictionary lookups give you generic definitions. But words and phrases often mean different things depending on where they appear. A term in a medical article means something different than the same term in a legal document or a casual blog post. Eg: An emulator is someoneone that emulates but it can also be a hardware/software hat enables one computer system to behave like another.
Rhino understands the broader content to give you an explanation that actually makes sense for what you're reading. It doesn't just define words—it helps you understand them in context.
Perfect For
• Research and learning – Quickly understand technical terms, jargon, and specialized vocabulary in articles, papers, and documentation
• Reading news and articles – Get background on people, events, organizations, and references you're not familiar with
• Exploring new topics – Dive into unfamiliar subjects without getting lost in terminology
• Non-native English readers – Understand idioms, cultural references, and expressions that don't translate literally
• Professional development – Keep up with industry-specific language in your field
Key Features
1. Multiple AI Providers
Choose from OpenAI, Anthropic (Claude), or Google Gemini. Use whichever provider you prefer, or set up multiple as backups. Drag and drop to set your priority order—Rhino will automatically try the next provider if your primary one is unavailable. …