Dictionary.com
Thesaurus.com

post horn

American  

noun

  1. a straight or coiled copper or brass horn with no valves or slide, originally used to announce mail coaches.


post horn British  

noun

  1. a simple valveless natural horn consisting of a long tube of brass or copper, either straight or coiled; formerly often used to announce the arrival of a mailcoach

"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 post horn

First recorded in 1665–75

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.

The second half comprises 30-odd short, Ruscha-dedicated vignettes, shuffling orchestral elegance and peremptory bangs, fast, jazzy basslines, blues-guitar boogies against what sounds like somebody blowing a post horn, gamelan-percussion swirlings and raw noise.

From The Guardian • Dec. 16, 2010

Most people might suppose that the march was dedicated to an army post, or the Post Office department, or perhaps had something to do with a post horn.

From Time Magazine Archive

Tantwivy was the sound of the hunting horn   in full cry, or that of a post horn.

From 1811 Dictionary of the Vulgar Tongue by Grose, Francis

The clang of a post horn sounded below on the country road, mixing itself strangely with the noisy dance music.

From Herman A Novel by Werner, E.

Over there on the distant country road, the sound of a post horn came through the falling snow.

From Herman A Novel by Werner, E.