A satoshi is the smallest unit of bitcoin, equal to one hundred-millionth of a coin. Fractional units make it possible to make very small payments and to specify amounts precisely.

Satoshi Nakamoto is the name under which bitcoin and its technical document were introduced. To this day it is unknown whether a single person or a group stands behind this pseudonym.

A candle is an element of an exchange chart that compactly reflects price movement over a chosen period: the opening and closing prices, as well as the high and the low.

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.

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