Other forms: pilcrows
A pilcrow is a typographical character that looks like this: ¶. It's used to mark the beginning of a new paragraph.
The pilcrow looks a bit like a backward-facing capital P, but it started out centuries ago as a capital C with a slash through it. It stood for the Latin word capitulum, meaning "little head" or "chapter." Back when paper was very expensive, scribes wasted no space by indenting or skipping a line at the start of a new paragraph. Instead, they used this symbol in the margin. Today, you'll see it if you toggle to the formatted view of a document on your computer. And professional editors use it to show authors where to start a new paragraph.