This is the 457th most frequent Bulgarian word.
ти
"You" (informal, singular).
In this sentence, 'ти' is used as the second person singular personal pronoun in its nominative case, emphasizing the subject.
Как се казваш ти?
What is your name?
In this sentence, 'ти' appears in its nominative form to emphasize the addressee in addition to 'теб', which is an accusative/dative form.
Тези цветя са за теб и ти.
These flowers are for you and you.
Here, 'ти' functions as a second person singular indirect object pronoun, showing who will receive the action.