This is the 57th most frequent Italian word.
dove
"Where."
In this interrogative context, 'dove' means 'where' in a question to ask about a location.
Dove abiti?
Where do you live?
Here, 'dove' is used as a relative adverb to introduce a subordinate clause indicating the location of the pen.
Non so dove sia la mia penna.
I don't know where my pen is.
In this case, 'dove' functions within a question embedded in a declarative sentence to inquire about a place.