This is the 3003rd most frequent Korean word.
티켓을
"티켓을" means "ticket" (object marker form).
In this sentence, '티켓을' is the direct object of the verb '샀어요' ('bought'). It refers to the tickets being purchased.
저는 영화 티켓을 샀어요.
I bought movie tickets.
Here, '티켓을' serves as the direct object of '예매했어요' ('reserved'). It indicates the tickets being reserved for entry to the museum.
박물관에 가려고 티켓을 예매했어요.
I reserved tickets to go to the museum.
In this case, '티켓을' is the direct object of '나누었어요' ('shared'). It represents the tickets that are being shared between individuals.