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milepost

American  
[mahyl-pohst] / ˈmaɪlˌpoʊst /

noun

  1. any of a series of posts set up to mark distance by miles, as along a highway, or an individual post showing the distance to or from a place.

  2. a notable point or significant event in the progress or development of something; milestone.

milepost British  
/ ˈmaɪlˌpəʊst /

noun

  1. horse racing a marking post on a racecourse a mile before the finishing line

  2. Also called (esp Brit): milestone.  a signpost that shows the distance in miles to or from a place

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of milepost

An Americanism dating back to 1760–70; mile + post 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And now, when he inevitably crosses the 3,000 career strikeout milepost, it will almost certainly happen on his home mound.

From Los Angeles Times • Jun. 26, 2025

“Today is another important milepost on that path.”

From Los Angeles Times • Jan. 23, 2025

Just last week, Caltrans announced that it had finished its design plan for repairs at Regent’s Slide, a massive pile of earth and muck blocking the road near milepost 27.8.

From Los Angeles Times • Mar. 31, 2024

Eastbound traffic is stopped at milepost 138, seven miles east of Packwood.

From Seattle Times • Jan. 12, 2024

Around 6:40 a.m., just minutes before dawn, Keith and Jim neared milepost 106.6, which was right around the turnoff to a gun range.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.