Looking for one specific symbol? Each page below covers a single character in depth — meaning, history, how to type it, and where it works. Looking for a whole set to browse and copy? See the full library instead.
The library is built for browsing — grids of related symbols you scan and copy from in one pass. This section is built for the opposite job: you already know exactly which symbol you're after, and you want the full story on that one character — its Unicode identity, where it came from, whether it's safe to use in a username, and how to type it without copying it from a page like this every time.
Pulled out of the math symbols library for their own dedicated pages.
Meaning, 1525 origin, and how to type it.
John Wallis's 1655 lemniscate, explained.
Two values in one symbol, and its mirror ∓.
Comparison meaning, and why they can break HTML.
The obelus, and its 1659 origin.
The engineering sign for circular dimensions — and the ∅ it's mistaken for.
Pulled out of the special characters library for their own dedicated pages.
A 500-year-old ledger mark, and Ray Tomlinson's 1971 email use.
A Roman ligature for "et," and where its odd name comes from.
The mark lawyers use to cite a specific section.
The paragraph mark hiding in your word processor.
Why it's no longer legally required, and why it still matters.
An unregistered brand claim, and how it differs from ®.
Identical to Greek mu (μ) on screen, a different character underneath.
Pulled out of the currency symbols library for their own dedicated pages.
Pulled out of the arrow symbols library for their own dedicated pages.
Related to the religious symbols library, each with its own dedicated page.
High-volume named symbols that don't share a category with the pages above.
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