gauge

US /ɡeɪdʒ/
UK /ɡeɪdʒ/
"gauge" picture
1.

an instrument or device for measuring the amount, level, or contents of something, typically a fluid or gas, or the size or dimensions of an object.

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The fuel gauge in the car showed that the tank was almost empty.
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He used a pressure gauge to check the tire inflation.
:
meterindicatordialdisplayregister
2.

the thickness, size, or capacity of something, especially as a standard measure.

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The wire was of a very fine gauge.
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The shotgun takes 12-gauge shells.
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caliberborediameterthicknesswidth
1.

estimate or determine the amount, level, or contents of (something).

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It's difficult to gauge the public's reaction to the new policy.
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The company needs to gauge its progress against its goals.
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measureassessevaluateestimatedetermine
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narrow gauge