$USDC Have you heard about the "currency pair" and don't know what it means? Don't worry, here's the simple version with USDC as an example.
USDC is a stablecoin that always equals 1 dollar, or at least that's what it tries to do. When you see something like USDC/ETH, you are looking at a currency pair, meaning how USDC and Ethereum are exchanged with each other.
Imagine that ETH is at $3,000. If you sell 1 ETH in that pair, you receive 3,000 USDC (more or less, depending on the market and the fees).
The pairs are like dance partners in exchanges: one currency moves, the other reacts.
And with USDC, everything remains more stable, ideal for moving around without too much drama.