This is the 33rd most frequent Arabic word.
هي
"She" or "it" (feminine).
The word 'هي' in this sentence acts as a third person feminine singular pronoun, indicating the subject 'she'.
هي طالبة مجتهدة.
She is a diligent student.
Here, 'هي' is used for emphasizing the subject 'it,' which refers to the sky in a feminine form.
هي السماء زرقاء.
It is the sky that is blue.
In this example, 'هي' is used as a pronoun referring to 'her,' functioning within a question to identify the agent.