Passenger Ticket
Ticket
noun
If you want to ride in a car, the ticket you'll need is a passenger ticket.
乗車券 is primarily a ticket for a train ride, so think of "car" here as a train car. It can also refer to tickets for other rides, like Ferris wheels, cable cars, ropeways, or certain buses that require a prior ticket purchase.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
バスの乗車券はどこで買える？
Where can I buy a bus ticket?
割引乗車券はありますか。
Do you offer discount tickets?
電車の乗車券を内ポケットに入れたはずなのに、見当たらないの。
I was sure I put my train ticket in my inside pocket, but I can't find it.