|Language:||Old North French|
gauge1 also gage American English [countable]
an instrument for measuring the size or amount of something
fuel/temperature/pressure etc gauge
The petrol gauge is still on full.
a measurement of the width or thickness of something such as wire or metal:
a 27 gauge needle
heavy gauge black polythene
something that helps you make a judgment about a person or situation:
Retail sales are a gauge of consumer spending.
The tests will give parents a gauge of how their children are doing.
the distance between the lines of a railway or between the wheels of a train:
a standard gauge railway
broad/narrow gauge (=with more/less than the standard distance between the rails)
the width of the barrel of a gun:
a 12-gauge shotgun