Free AI Dictionary

AI popup dictionary with context-aware definitions & translations for web and PDFs. Highlight text, get instant explanations. Free AI-powered contextual dictionary for Chrome. Highlight any text on a webpage or PDF and get an instant, context-aware definition in a popup.

Standard dictionaries give you every possible meaning of a word. This extension reads the surrounding paragraph and gives you the one that fits.

What makes it different from a regular dictionary:

• Reads the full paragraph before answering. It knows whether "bank" means a riverbank or a financial institution.
• Translates idioms and technical jargon into your native language with the correct meaning.
• Works on PDFs. Highlight text, right-click, and select "Explain with AI."
• Saves terms and explanations to a personal dashboard you can review later.
• Shows the explanation popup right next to your selected text. No tab switching.
• Lets you ask follow-up questions in a side panel. "What's an example?" or "Explain it simpler."
• Supported languages: English, Spanish, French, German, Portuguese, Italian, Russian, Chinese, Japanese, Korean, Arabic, Hebrew, Hindi, Dutch, Polish, Turkish, Ukrainian, Vietnamese.

Who uses it:

• Students reading dense papers and textbooks.
• Language learners who want to understand meaning, not just get a word swap.
• Professionals going through technical or legal documents.