Bitcoin's price falling below $70,000 (£51,679) to hit a recent low has thrust the buzzy world of cryptocurrencies back into the spotlight.
The world's most valuable digital currency makes headlines when it soars to all time highs or sinks to new lows - as it has in early February with a return to prices not seen since before Donald Trump was elected as US President for a second time.
But the crypto market as a whole abounds with confusing terms like ETFs, blockchains and stablecoins, that can make the topic somewhat tricky to navigate.
Worry not.
If you're hearing these for the first time, or could do with a refresher, here are a few key terms and what they mean.
