票

票 (piào) means 'ticket' — the slip of paper or digital pass you buy or hold to enter or use something: a movie, train, plane, concert, or museum. It is almost always counted with 张 (zhāng), the measure word for flat sheet-like things, so 'two tickets' is 两张票.

票 is rarely used alone in modern speech; native speakers usually attach it to what kind of ticket: 电影票 (movie ticket), 火车票 (train ticket), 飞机票 (plane ticket), 门票 (entry ticket). 票 also extends to 'vote' (投票 tóupiào, 'cast a vote'; 选票 xuǎnpiào, 'ballot') and to currency-style notes (钞票 chāopiào, 'banknote'), so context matters when you read it.