This is the 1522nd most frequent Spanish word.
isabel
"Isabel" is a Spanish feminine given name, equivalent to "Elizabeth" in English.
Here, 'Isabel' is used as a proper noun, identifying a specific person. Proper nouns are capitalized and denote entities like people, cities, etc.
Isabel es una amiga muy querida.
Isabel is a very dear friend.
In this sentence, 'Isabel' is referred to as a subject matter being discussed: its name and its etymological significance.
El nombre Isabel tiene raíces históricas.
The name Isabel has historical roots.
Here, 'Isabel' functions as part of a title, specifically 'Queen Isabel,' identifying a historical figure or a person holding a royal status.