This is the 240th most frequent Estonian word.
nad
"They."
In this sentence, 'nad' is used as a subject pronoun referring to a group of people.
Nad lähevad homme jalutama.
They are going for a walk tomorrow.
Here, 'nad' functions again as a subject pronoun in a question structure about a group's action.
Kas nad tulevad varsti tagasi?
Are they coming back soon?
In this sentence, 'nad' is a subject pronoun used in both the direct quote and the indirect speech to refer to the same group.