admission ticket; entrance ticket
platform ticket; ticket allowing a non-traveller access to a railway station platform
入場券を当日購入した。
I bought an admission ticket on the day.
美術館の入場券を事前にネットで買った。
I bought the museum admission ticket online in advance.
人気公演の入場券は発売直後に売り切れた。
Admission tickets for the popular performance sold out right after they went on sale.