On the Bitcoin StackExchange site we have a discussion about a few words that you probably won't find in a dictionary right now but that are technical terms used in Bitcoin or cryptocurrency in general. As I am not a native english speaker myself I would like to know if there are any general guidelines that we should follow when deciding how to write them.
The block chain (or block-chain or blockchain) is a chain of blocks, each block containing a number of transactions made on the network.
To double spend (or double-spend or doublespend) is to attempt to spend the same money twice.