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OO gauge

[ oh-oh ]
/ ˈoʊˈoʊ /
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noun
a model railroad gauge of 3/4 inch (19 millimeters).
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Origin of OO gauge

First recorded in 1920–25

Words nearby OO gauge

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use OO gauge in a sentence

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