The bottom is the lowest point of a price decline over a certain period of time, after which the price begins to rise or, at the very least, stops declining.

MACD is a technical indicator that assesses the strength and direction of a trend based on a combination of moving averages. It helps to find potential price reversal points.

Dividends are a part of profit distributed among the holders of an asset. In a broad sense, the ROI indicator reflects the return on investment and the yield on invested capital.

A derivative is a derivative financial instrument whose value depends on the price of an underlying asset. In the crypto market, derivatives are used to hedge risks and to speculate on changes in coin prices.

A dev is a colloquial name for a developer, that is, a specialist who creates and maintains the code of cryptocurrencies, blockchain protocols, wallets, and related applications. The development of a project largely depends on devs.