milepost /ˈmaɪlˌpoʊst/noun 2verb 1forms 3 noun2 •A post on a highway, often with one or more fingerposts, showing the distance in miles to nearby places. •A sign or post beside a railway marking the distance from the (actual or nominal) start of a line (usually the principal terminus or junction with a more major line).But beyond these cut-offs, to avoid the wholesale alteration of all mileposting and mileages—of bridges and culverts, for example—the original mileposts have remained unaltered. — 1946 verb1 •To place mileposts along (a road, etc.). formsmileposted · mileposting · mileposts