1. [noun] A snake.
2. [noun] (musical instruments) An obsolete wind instrument in the brass family, whose shape is suggestive of a snake (Wikipedia article).
3. [noun] (figurative) A subtle, treacherous, malicious person.
4. [noun] A kind of firework with a serpentine motion.
5. [verb] (obsolete) To wind; to encircle.
6. [noun] Limbless scaly elongate reptile; some are venomous.
7. [noun] A firework that moves in serpentine manner when ignited.
8. [noun] An obsolete bass cornet; resembles a snake.