GAUGE

Definition of GAUGE

(verb)judge tentatively or form an estimate of (quantities or time)
(verb)rub to a uniform size
(verb)determine the capacity, volume, or contents of by measurement and calculation
(verb)measure precisely and against a standard
(verb)adapt to a specified measurement
(verb)mix in specific proportions
(noun)a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.
(noun)accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared
(noun)the distance between the rails of a railway or between the wheels of a train
(noun)the thickness of wire
(noun)diameter of a tube or gun barrel