Verbs:
* comer: to eat
* beber: to drink
* hablar: to speak
* escribir: to write
* leer: to read
* vivir: to live
* correr: to run
* bailar: to dance
* trabajar: to work
* caminar: to walk
* jugar: to play
* tocar: to touch
* mirar: to look at
* pensar: to think
Nouns:
* el papel: the paper
* el saber: the knowledge
* el deber: the duty
* el querer: the desire
* el poder: the power
* el color: the color
* el dolor: the pain
* el error: the error
* el carácter: the character
* el amor: the love
* el favor: the favor
Adjectives:
* ligero: light
* fuerte: strong
* bonito: beautiful
* rápido: fast
* bueno: good
* malo: bad
* frío: cold
* caliente: hot
* seguro: safe
* fácil: easy
* difícil: difficult
This is just a small sample of the many Spanish words that end in "er." Remember that the "er" ending is common in Spanish, particularly in verbs.