milestone
マイルストーン
Boundary marker
Exit number
Ichirizuka - 一里塚
Highway location marker
Kilometre zero
Milepost equation
Parting stone
Reassurance marker – a road sign with a route number, but no distance
Survey marker
Waymarking
/suto3/google.iconmilestone
image milestone
define milestone
wikipedia milestone
weblio milestone
kotobank milestone
jisho milestone