Definitions
from The American Heritage® Dictionary of the English Language, 4th Edition
 adj. Of or relating to the meter or the metric system: U.S. Customary units and their metric equivalents.
 n. A standard of measurement.
 n. Mathematics A geometric function that describes the distances between pairs of points in a space.
 adj. Of or relating to distance.
 n. Poetic meter.
from Wiktionary, Creative Commons Attribution/ShareAlike License
 adj. of or relating to the metric system of measurement
 adj. of or relating to the meter of a piece of music.
 adj. Of or relating to distance
 n. A measure for something; a means of deriving a quantitative measurement or approximation for otherwise qualitative phenomena (especially used in Software Engineering)
 n. A measurement of the "distance" between two points in some metric space: it is a realvalued function d(x,y) between points x and y satisfying the following properties: (1) "positive definiteness": and , (2) "symmetry": , and (3) "triangle inequality": .
 v. To measure or analyse statistical data concerning the quality or effectiveness of a process.
from the GNU version of the Collaborative International Dictionary of English
 adj. Relating to measurement; involving, or proceeding by, measurement.
 adj. Of or pertaining to the meter as a standard of measurement; of or pertaining to the decimal system of measurement of which a meter is the unit
from The Century Dictionary and Cyclopedia
 Quantitative; involving or relating to measures of distance, especially in different directions. See geometry.
 Having meter or poetic rhythm; pertaining to meter or to metrics; metrical.
 n. Same as metrics.
 Pertaining to that system of weights and measures of which the meter is the fundamental unit.
 See gram.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
 n. a decimal unit of measurement of the metric system (based on meters and kilograms and seconds)
 n. a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
 n. a system of related measures that facilitates the quantification of some particular characteristic
 adj. based on the meter as a standard of measurement
 adj. the rhythmic arrangement of syllables
Etymologies
Examples

Maybe the way to get the US to convert to metric is to start using the proper name for the "English" weights and measures system: "British Imperial Units".
NASA Finds The Metric System Too Hard To Implement for Constellation  NASA Watch

The game could be played in the reverse, where the metric is the number of people you see singing along/tapping feet/dancing.

Look, I'm agnostic on whether this 'metric' is accurate, or whether an entirely nonsubjective metric of freedom is even possible.

I think the distances being metric is probably more of a problem for a short term visitor than it is for those of us that live here.
distance in miles from EaglePassTexas to San Miguel de Allende

The only relevant $$$ metric is the net FDIC liability vs. the public $$$$ required to restore solvency.

Why couldn't ESMD have simply directed that things be done in metric in the first place  in compliance with NASA's own regulations (note the OIG report from 2001 years before Constellation was even started).

TFP, or total factor productivity, is a key longterm metric, capturing technological and managerial efficiencies that the Conference Board believes have accounted for about a quarter of total global output growth in recent years.

The metric is percent of total unemployed that are unemployed for longer than 1 year.
Coyote Blog » Blog Archive » The Cost of our New Corporate State

Also metric is much easier to calculate than the “English” system.
Coyote Blog » Blog Archive » It Seems I Was Right About Daylight Savings Time

The first, and most obvious metric is “subsidy dollar costs vs. GHG emissions reduced”.
Coyote Blog » Blog Archive » I Need Some Help on Alternative Energy Subsidies
bilby commented on the word metric
"The administration is evidently now 'tweaking' its metrics. But let's admit it: metrics in war almost invariably turn out to occupy treacherous terrain. Think of it as quagmire territory, in part because numbers, however accurate (and they often aren't), can lie  or rather, can tell the story you would like them to tell. The Vietnam War was a classic metrics war. Sometimes it seemed that Americans in Vietnam did nothing but invent new ways of measuring success."
 Tom Engelhardt, Afghanistan by the Numbers, tomdispatch.com, 8 September 2009.
September 9, 2009
chained_bear commented on the word metric
Popular Musicians if England Had Won the Revolutionary War.
September 3, 2008