This is the 7352nd most frequent Spanish word.
haley
The word "haley" does not have a definition in Spanish; it appears to be a proper noun or name.
In this sentence, 'Haley' is used as a proper noun to name an individual - it doesn't have a generic meaning in Spanish.
Haley es el nombre de mi mejor amiga.
Haley is the name of my best friend.
'Halley' here refers to the Halley's Comet, illustrating a specific astronomical object and showing how proper nouns can vary slightly for universal entities between languages.
El cometa Halley es famoso por su órbita.
The Halley comet is famous for its orbit.
Once again, 'Halley' is mentioned in an informative context relating to its historical and scientific importance, reinforcing its role as a proper noun.