This is the 559th most frequent Estonian word.
sa
"You" (singular, informal).
Here, 'sa' is the second person singular pronoun acting as the subject of the sentence.
Sa oled tubli.
You are commendable.
Here, 'sa' identifies the one performing the action of the verb in the past tense.
Sa rääkisid mulle huvitavatest kogemustest.
You told me about interesting experiences.
In this question, 'sa' is used to directly address the listener, emphasizing the inquiry's subject.