A ticket or pass issued for travel, admission, or use of a service; especially common for train and bus tickets.
駅で東京までの切符を買った。
I bought a ticket to Tokyo at the station.
I lost my train ticket.
I bought a ticket to Osaka.
I bought a ticket at the station before boarding the train.
Please show your ticket at the gate.
Tickets for that day were already sold out.
切符 refers to a single ticket for one ride, whereas 回数券 is a bundled booklet of multiple discounted tickets.
first-class ticket
red traffic ticket; serious violation ticket · third-class ticket