This is the 7618th most frequent Spanish word.
kirby
"Kirby" is not a Spanish word; it is a proper noun referring to a video game character.
Here, 'Kirby' refers to the name of a well-known video game character from the Nintendo franchise, used as a proper noun.
Kirby es un personaje icónico en los videojuegos.
Kirby is an iconic character in video games.
In this sentence, 'Kirby' continues to refer to the video game character, used in a merchandising context to indicate a product related to it.
Hoy vi un peluche de Kirby en la tienda.
Today I saw a Kirby plush toy in the store.
Once again, 'Kirby' is used in its proper noun context, referring to the character that someone depicted in an art setting.