This is the 25th most frequent Hindi word.
व
"व" in Hindi means "and" or "he/she/it/that" depending on context.
Here, 'व' is used as a pronoun meaning 'he' to indicate the subject of the sentence.
व दो किताबें पढ़ रहा है।
He is reading two books.
In this sentence, 'व' is employed as a conjunction meaning 'and' to connect two subjects.
सूर्य व चंद्रमा आकाश में चमकते हैं।
The sun and the moon shine in the sky.
Here, 'व' again is used as a pronoun referring to 'he' in a narrative context.