(ˈ)ā¦chō- noun
Usage: usually capitalized H&O
Etymology: from HO gage
: a scale of 3.5 millimeters to one foot used especially for model toys (as automobiles or trains)
(ˈ)ā¦chō- noun
Usage: usually capitalized H&O
Etymology: from HO gage
: a scale of 3.5 millimeters to one foot used especially for model toys (as automobiles or trains)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012