Lexio AI contextual definition solutions
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✦ Paste your text here, then click Analyze text
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Click any word

After analyzing your text, tap any word to see its precise meaning in context.

About

Read deeper.
Understand everything.

Lexio gives you the precise meaning of any word in context — not a dictionary definition, but what it actually means in the sentence you're reading.

See how it works
How it works
1

Paste any text

Drop in a paragraph from an article, book, email, or anything else — any language works.

2

Analyze it

Lexio reads the full context and prepares every word for instant lookup. Takes about a second.

3

Click any word

Tap a word to see its exact meaning in that sentence, where it comes from, and how to say it.

Lexio Pro

Read without limits

The free plan gets you started. Pro removes every cap and unlocks all three reading modes.

Free
$0 /month
  • 7-day Pro trial included
  • 100 word lookups / month
  • 3 OCR scans / month
  • Fast mode
  • Re-request definition up to 5×
  • Balanced & Deep modes
  • Word bank sync across devices
Use for free
Pro
$2.99 /month
  • Unlimited word lookups
  • Unlimited OCR scans
  • Fast, Balanced & Deep modes
  • Word bank sync across devices
  • Priority support

Instant activation · cancel any time

Features

Contextual definitions

Not what the word means in general — what it means right here, in this sentence, the way this author used it.

11 languages

Paste text in Spanish, French, German, Russian, Japanese, and more. Get definitions in whatever language you prefer.

IPA pronunciation

See the phonetic transcription of every word and hear it spoken aloud with a single tap.

Etymology

Understand where words come from. Knowing a word's roots makes it stick — and makes the next related word easier.

Word bank

Save words you want to remember. Your personal vocabulary list, always one click away.

3 reading modes

Switch between Fast, Balanced, and Deep — powered by OpenAI, Google, and Anthropic — each tuned to a different depth of analysis.

Three modes. One seamless switch.

OpenAI GPT-4o Mini

Fast

Near-instant lookups. Concise and accurate — best for high-frequency reading when you don't want to break flow.

Google Gemini 2.5 Flash

Balanced

Smart and thorough — wide language coverage, strong contextual reasoning, and rich cultural nuance.

Recommended
Anthropic Claude Sonnet 4.5

Deep

Maximum depth — richer etymologies, literary-grade register, and the most precise "why this word" explanations.

Frequently asked questions

Yes. New users get a 7-day free trial with full Pro access — no credit card required. After the trial, the free plan gives you 100 word lookups and 3 image scans per month. Pro (from €2.99/month) removes all limits and unlocks Balanced and Deep modes.

Yes — the extension works on any page in Chrome. Select a word or phrase, right-click and choose "Define with Lexio", or use the keyboard shortcut. It works on news sites, PDFs opened in Chrome, academic papers, and more.

Only the word you look up and a short surrounding context window are sent to the AI provider. The full text you paste is never stored on our servers. See our Privacy Policy for full details.

Fast mode is available on the free plan — quick and accurate for everyday reading. Pro unlocks Balanced (Gemini 2.5 Flash) and Deep (Claude Sonnet 4.5). For literature, legal texts, or academic prose, Deep gives the richest analysis.

You can paste text in any language — English, Spanish, French, German, Dutch, Russian, Japanese, Chinese, Arabic, Portuguese, and Italian. Definitions can be returned in any of those languages too.

Yes, cancel any time from your account settings. You keep Pro access until the end of the billing period, then automatically move to the free tier.

Chrome Extension

Look up words without leaving the page.

Select any word or sentence on any website. Lexio appears instantly with the meaning in context — no copy-paste, no tab switching.

Free · Works on any page · No account required
Mac App

Always at hand, wherever you read.

The Lexio Mac app lives in your menu bar or dock, so you can look up words without switching to your browser.

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