Silk Road was an underground online marketplace shut down by the authorities, which accepted payment in bitcoins and had a notable impact on the early fame of cryptocurrency.

A mixing service, or mixer, combines and shuffles many transactions in order to make it harder to trace the origin and the path of the coins.

SEPA is a single euro payments area that simplifies cashless transfers between banks of member countries under common rules and standards.

"To sell" is a piece of trader slang derived from the English word sell, that is, to sell an asset on an exchange.

SegWit is an update to the bitcoin protocol that moves signature data outside the main part of the block, increasing its efficiency and helping to address scalability issues.