青春１８きっぷ、青春十八きっぷ、青春１８切符、青春十八切符
せいしゅんじゅうはちきっぷ
seishunjuuhachikippu
JMdict entry #2840833
- noun (common) (futsuumeishi) Seishun 18 ticket; seasonally available railway ticket for 5 days of unlimited travel on non-Shinkansen JR trains