symbol-name

(symbol-name symbol)

Returns the symbol's name as a string. rontolisp symbols are case-preserving (a name reads back exactly as written, normally lowercase), so unlike Common Lisp the result is not upcased: (symbol-name 'foo) is "foo", not "FOO". The stored name is returned verbatim — the same text princ prints — so a keyword keeps its leading : and a gensym/make-symbol result keeps its #: prefix.

On the compiled backends (JVM/WASM) symbol-name shares the princ-to-string machinery, so a non-symbol argument yields its display text instead of signaling an error (the interpreter signals).