This is the 17362nd most frequent Russian word.
твиту
"Твиту" is the dative case of "твит," meaning "to a tweet" in English.
The use of 'твиту' employs it in the dative case to indicate the recipient of the action, 'replying'.
Я ответил на твиту друга.
I replied to a friend's tweet.
'Твиту' is used in the prepositional case to specify a location or subject in the tweet.
Сообщение в этом твиту стало вирусным.
The post in this tweet went viral.
'Твиту' is in the dative case, showing the target or goal of 'adding'.