Serpent
Part of speech: noun
Definition: A snake. A musical instrument in the brass family, whose shape is suggestive of a snake (Wikipedia article).
Snake
Part of speech: noun
Definition: A legless reptile of the sub-order Serpentes with a long, thin body and a fork-shaped tongue.A treacherous person.A tool for unclogging plumbing.A tool to aid cable pulling.A trouser snake; the penis.
Part of speech: verb
Definition: To move in a winding path.To steal slyly.To clean using a plumbing snake.