(computing) A means of representing semistructured data in human-readable text form, mostly composed of symbols and lists and extensively used in the Lisp programming language.

The symbol ©, a circumscribed letter c, indicating that a work is copyrighted.

The symbol 🄯, a horizontally mirrored copyright symbol, denoting copyleft.

The symbol "™", consisting of the letters TM in superscript, used to indicate that a term is a trademark (whether registered or not).

A symbol universally associated with recyclable materials. It is composed of three crooked arrows arranged as a triangular clockwise Möbius strip.

A symbol that is universally recognized as a warning against substances that pose a threat to the health of living organisms, primarily that of humans.

A numero sign.

A lemniscate; the figure ∞ that represents infinity.

A circumscribed uppercase "A", denoting anarchy.

(chemistry) the 1- to 3-letter international code for a chemical element