This is the 3020th most frequent Spanish word.
elisa
"Elisa" is not a standard Spanish word; it is typically used as a proper noun, specifically as a given name.
Elisa is used here as a proper noun, referring to the name of a person.
Elisa es una estudiante muy aplicada en sus estudios.
Elisa is a very dedicated student in her studies.
ELISA is used here as an acronym for a specific scientific assay (Enzyme-Linked Immunosorbent Assay).
En el laboratorio, realizaron un análisis ELISA para detectar antígenos.
In the laboratory, they conducted an ELISA test to detect antigens.
Elisa is again used as a proper noun here, indicating the person being addressed directly.