This is the 6876th most frequent Spanish word.
demetrio
"Demetrio" is a proper noun, typically used as a male given name in Spanish, equivalent to "Demetrius" in English.
Here, 'Demetrio' is a proper noun and serves as the subject of the sentence, referring to a person's name.
Demetrio es un nombre poco común en mi país.
Demetrio is an uncommon name in my country.
In this usage, 'Demetrio' is still a proper noun, here being the direct object of the verb 'llamar' (to call).
Cuando escuché a alguien llamar a Demetrio, me volteé intrigado.
When I heard someone calling Demetrio, I turned around intrigued.
Here, 'Demetrio' functions as a subject of a story, emphasizing its role as a fictional or historical character.