Gauge v. t. : To measure or determine with a gauge.

Gauge v. t. : To measure or to ascertain the contents or the capacity of, as of a pipe, barrel, or keg.

Gauge v. t. : To measure the dimensions of, or to test the accuracy of the form of, as of a part of a gunlock.

Gauge v. t. : To draw into equidistant gathers by running a thread through it, as cloth or a garment.

Gauge v. t. : To measure the capacity, character, or ability of; to estimate; to judge of.

Gauge n. : A measure; a standard of measure; an instrument to determine dimensions, distance, or capacity; a standard.

Gauge n. : Measure; dimensions; estimate.

Gauge n. : Any instrument for ascertaining or regulating the dimensions or forms of things; a templet or template; as, a button maker's gauge.

Gauge n. : Any instrument or apparatus for measuring the state of a phenomenon, or for ascertaining its numerical elements at any moment; -- usually applied to some particular instrument; as, a rain gauge; a steam gauge.

Gauge n. : Relative positions of two or more vessels with reference to the wind; as, a vessel has the weather gauge of another when on the windward side of it, and the lee gauge when on the lee side of it.

Gauge n. : The depth to which a vessel sinks in the water.

Gauge n. : The distance between the rails of a railway.

Gauge n. : The quantity of plaster of Paris used with common plaster to accelerate its setting.

Gauge n. : That part of a shingle, slate, or tile, which is exposed to the weather, when laid; also, one course of such shingles, slates, or tiles.

Example:
What Gauge wire do i need to run from my capacitor to my amp?

Taxonomy
Gauge, thickness, free encyclopedia, measurements, bore diameter, 1 gauge, 12 Gauge, search, free dictionary, wire, shotgun barrel, hypodermic needle, plastics, Sheet metal gauge, composition, measuring instrument, Pressure gauge, vacuum gauge.

Defination from the web:
gauge = 1/100 Mil = 1/100,000 inch = 25.4/100000 mm = 0.254 micron ... Stream gauge for measuring height and discharge of a river or stream. The size of piercing jewelry thickness and a stretched piercing, see stretching (body piercing) ...