Romney did not deliver last night the calibre performance he displayed during the first debate.
He added that it exposed the calibre of forces that Nato was able deploy.
It would be idle either to affirm or to deny that the last half-century has produced men of science of the calibre of Newton.
All the same, I am not very sweet on love matches for men of Orange's calibre.
I mean the Flobert duelling pistol, formerly made in France and Belgium, shooting bulleted caps of about .2 calibre.
Guns of this calibre the Warrior and her class were proof against.
This is intelligible enough; but we hardly think there are many reasoners of this calibre.
It is a relief to have an outsider of Hankey's calibre on the spot.
Soon after daybreak the Germans were off again, shelling our trenches with shells of every calibre.
Rice says our calibre is too light—we can't stand it to be noticed!
1560s, "degree of merit or importance," a figurative use from Middle French calibre (late 15c.), apparently ultimately from Arabic qalib "a mold for casting." Arabic also used the word in the sense "mold for casting bullets," which is the oldest literal meaning in English. Meaning "inside diameter of a gun barrel" is attested from 1580s. Barnhart remarks that Spanish calibre, Italian calibro "appear too late to act as intermediate forms" between the Arabic word and the French.
caliber cal·i·ber (kāl'ə-bər)
The diameter of the inside of a round cylinder, such as a tube.