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HO gauge

American  
[eych-oh] / ˈeɪtʃˈoʊ /

noun

  1. a model railroad gauge of 0.65 inch (16.5 millimeters).

Etymology

Origin of HO gauge

h(alf ) O gauge

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.

O-gauge sets are electric sets that are approximately 1:48 ratio; HO gauge are 1:87 ratio; and N gauge refers to a 1:148 scale.

From Washington Times

Its members, bright-eyed and crew-cutted upperclassmen who spoke with the spasmodic cadences of people who want words out of the way in a hurry, boasted a spectacular display of HO gauge trains they had in a permanent clubroom in Building 20.

From Project Gutenberg

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.