Similar words
culebra
culebra and serpiente are close synonyms for "snake"; serpiente is more general or formal, culebra more colloquial, sometimes for non-venomous snakes.
Similar in other languages
French
serpent
serpent is the French word for the same thing — both mean "snake."
Portuguese
cobra
cobra is the Portuguese word for the same thing — both mean "snake."
Practice
1 What does serpiente mean?
snake
2 Fill the gap: Una ___ cruzó el camino.
Full sentence: Una serpiente cruzó el camino. (A snake crossed the path.)
3 Which fingerprint chart matches serpiente?
serpiente: neutral register, common frequency, general domain, neutral connotation.