BTC usually refers to Bitcoin, the first and largest cryptocurrency by market capitalization. A few common meanings of BTC: Bitcoin (BTC) — the cryptocurrency. BTC ticker — the trading symbol used on exchanges. In some contexts, BTC can also mean “before the common era” in abbreviations, but that's much less common today. If you're asking about Bitcoin, I can help with: Current price and market status How Bitcoin works Buying, selling, or storing BTC Mining Investment risks and analysis What would you like to know about BTC?$BTC