This is the 11567th most frequent Catalan word.
álvarez
"Álvarez" is not a Catalan word; it is a Spanish surname.
Here, 'Álvarez' is used as a proper noun referring to a surname.
El Sr. Álvarez viu a Barcelona.
Mr. Álvarez lives in Barcelona.
In this sentence, the word 'Álvarez' is treated as a specific family name, a noun.
El cognom Álvarez és molt comú a Sud-amèrica.
The surname Álvarez is very common in South America.
In this example, 'Álvarez' is utilized to denote an anonymous person with that surname, emphasizing the noun's individualization.