乗車じょうしゃ
jōsha

Noun
Suru Verb

1. boarding (a train, bus, etc.); getting into (e.g. a taxi)

Intransitive
Antonym of 下車降車
列車れっしゃ乗車じょうしゃしたあと、私わたくし財布さいふいえわすれてきたことにいた。
resshani jōsha shita atode watashiwa saifuo ieni okiwasurete kita kotoni kigatsuita
After I got on board a train, I found I had left my wallet behind at home.