Crypto means internet money. Cryptography is how it's built.
I've learned to just accept the new meaning and imo it's better that way (otherwise you'll end up being the person correcting everyone who writes linux to write gnu/linux for the rest of your life).
Crypto implies cryptocurrency now (especially in public facing writing), cryptography is the less common usage.
Or how do I use Coinbase for buying things? Try go to the coinbase website and look for how to buy things with your Bitcoin. What I read from the site is that it’s all about investing in the value going up, not about making payments to other people or businesses for services or purchases.
Download TOR, go to dark.fail, go to one of the onion sites, send them crypto from coinbase, purchase products.
Looking back at the initial whitepaper, Satoshi actually uses the word just once: “What is needed is an electronic payment system based on cryptographic proof instead of trust, allowing any two willing parties to transact directly with each other without the need for a trusted third party.” [1] The remainder of the paper uses terms like ‘hash’ and ‘digital signature’.
* "Crypto" means "cryptography"
* "Cryptocurrency" is a subset of "cryptography"
* Using "crypto" to mean "cryptocurrency" is valid as a synecdoche
So basically I use it both ways. That also makes more sense to me because "currency" feels like an overly narrow description of the current crypto ecosystem.
but tbh, some of the most exciting cryptographic problems are being worked on in the cryptocurrency industry (zk tech, for example).