perro
/ˈpero/ · A1 · adj
dog
🐶 perro: the rolled rr is a dog's growl — grrr lives inside the word
The trilled rr in perro sounds like a growling dog, so the word carries its own sound effect. As an adjective it turns nasty: una vida perra is a rotten, wretched life, much like English a dog's life.