Smarty Synonym

Double-click any word for synonyms, antonyms, meaning, and origin, instantly. Free and works on any website.

Smarty Synonym turns any word on any webpage into an instant lookup. Double-click a word, or right-click and choose "Find Synonyms," and a small popup shows you everything you need without leaving the page. What's new in v2.2: 💡 Added Word Meaning and an Antonyms tab, so you can see a definition or the opposite word without leaving the popup. ↺ Added Undo, which appears right after you replace a word and stays available even after the popup closes. ⏱️ The popup now stays open longer and pauses its auto-close timer while you're hovering over it. 🔍 Improved antonym matching for word forms like "happier" and "biggest" that previously came up empty. What you get, in one click: ✨ Synonyms & Antonyms. Switch between tabs to find a better word or its exact opposite. 💡 Instant Meaning. Tap the meaning icon for a quick definition, no extra tab or lookup needed. 📖 Word Origin. Curious where a word comes from? The origin icon pulls its history straight from Wiktionary. ✅ One-Click Replace. Click any suggestion and it swaps directly into the text you're editing or reading. ↺ Undo Anytime. Changed your mind? A floating Undo button stays available even after the popup closes. ⚡ Double-Click Toggle. Prefer to trigger lookups only by right-click? Turn double-click detection off anytime from the toolbar popup. Built for how you actually read and write: 🌐 Works on any website: emails, documents, articles, social media, anywhere there's text. 🌓 Automatically matches your system's light or dark theme. 🔒 No account, no sign-up, no data collection. 🆓 It's free. Perfect for: ✍️ Writers who want a sharper word choice without breaking focus. 🎓 Students building vocabulary while they read. 🗣️ Non-native English speakers who want a definition on the spot. 📚 Anyone tired of switching tabs to a dictionary or thesaurus. Just double-click. Learn. Improve.