This is the 955th most frequent Estonian word.
elisa
"Elisa" is not a standalone word in Estonian with a specific definition; it is commonly used as a proper noun, such as a name.
Here, 'Elisa' is used as a proper noun, referencing a person's name.
Elisa on minu parim sõber.
Elisa is my best friend.
In this sentence, 'Elisa' continues to be a proper noun used to indicate a specific individual by name.
Elisa töötab siin.
Elisa works here.
In this context, 'Elisast' (the 'about Elisa' part) shows the name 'Elisa' in its translative form in Estonian, indicating a grammatical relationship of the question to the name.