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OO gauge

[oh-oh]

noun

  1. a model railroad gauge of 3/4 inch (19 millimeters).

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Word History and Origins

Origin of OO gauge1

First recorded in 1920–25
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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.

About six years ago, I bought an OO gauge model steam locomotive from Hornby.

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As one grew older and clockwork became electric, OO gauge rather then O, the answer turned out to be "not always".

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