Acronym/Abbreviation Expander

Instantly decode any acronym or abbreviation — built-in dictionary + Wikipedia lookup. Select text, right-click, done!

Acronym/Abbreviation Expander — your instant decoder for any acronym or abbreviation you encounter on the web. 🔍 How It Works Select any abbreviation on a webpage, right-click, and get instant expansions from multiple sources. Or use the popup to look up acronyms manually. ✨ Key Features • Built-in dictionary with 790+ acronym definitions (English & Russian) • Wikipedia integration — fetches context from English and Russian Wikipedia • Smart context menu — appears only when you select acronym-like text • Manual lookup popup — search any abbreviation directly • Dark mode support — adapts to your browser theme • RTL language support • Available in 55 languages 🔒 Privacy First • No data collection or tracking • No analytics • No external requests except Wikipedia API for lookups • All assets bundled locally — no CDN dependencies • Works entirely in your browser ⚡ Fast & Lightweight Minimal permissions (contextMenus + activeTab only). No background processes when idle. Built-in caching for faster repeated lookups. Install now and never wonder what an abbreviation means again!