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Line breaks: cali|bre
Pronunciation: /ˈkalɪbə
(US caliber)

Definition of calibre in English:


1 [mass noun] The quality of someone’s character or the level of their ability: they could ill afford to lose a man of his calibre
More example sentences
  • Candidates of character and calibre with a sense of dedication and social commitment alone are to be elected.
  • And they are well aware of our real character, our real calibre, and our real commitment to putting the people first.
  • Love them or hate them, leaders of high calibre have the ability to grip the imagination; to make people feel that they've been swept up and carried in a direction of great promise.
quality, merit, distinction, character, worth, stature, excellence, superiority, eminence, pre-eminence;
ability, expertise, talent, capability, capacity, proficiency, competence;
1.1The standard reached by something: educational facilities of a very high calibre
More example sentences
  • With players of that calibre reaching full fitness and Duff still to be unleashed, the next couple of months could well prove extremely interesting.
  • Still if they can manage to recruit the right calibre of personnel to stand alongside Mayor Nuala Ryan who knows how things may pan out for them.
  • So what does an actor of MacLachlan's calibre do to reach the A-list - even if it's just for a fleeting moment?
standard, level, grade, quality
2The internal diameter or bore of a gun barrel: [in combination]: a small-calibre revolver
More example sentences
  • Improved projectiles were as important as larger calibres and longer barrels.
  • The barrel flutes vary in size for different calibers and barrel lengths, and perform a couple of functions.
  • For larger calibers and long-gun bores, the 3 - Piece Large Rifle Calibers and Shotgun Kits contain a larger-diameter rod.
2.1The diameter of a bullet, shell, or rocket.
Example sentences
  • At least 834 bullets of various calibers, weapons and three ready-to-use bomb circuits were also confiscated.
  • While the gargantuan engineering firm is better known for its hydro dams in Cree country, it also makes a lot of bullets, of different calibres, specifications and killing techniques.
  • Anyway, eh, I figure that the calibre of the bullets, plus the range and angle used whilst firing the weapon on the lock would figure in to it somewhere.
2.2The diameter of a body of circular section, such as a tube, blood vessel, or fibre: the reduction in calibre of arterial vessels
More example sentences
  • It regulates the calibre of blood vessels to vary the distribution of blood to the organs, whilst also maintaining the correct blood pressure.
  • A decrease in the caliber of blood vessels going to the ‘light’ areas suggests airway disease or vasculopathy.
  • Mental states occasion also changes in the calibre of blood-vessels, or alteration in the heart-beats, or processes more subtle still, in glands and viscera.


mid 16th century (in the sense 'social standing or importance'): from French, from Italian calibro, perhaps from Arabic qālib 'mould', based on Greek kalapous 'shoemaker's last'.



[in combination]: a large-calibred gun
More example sentences
  • Whereupon the man drew a heavy calibered revolver and shot him in the abdomen, the bullet coming out through his side.
  • In fact, the only large calibered piece not thus mounted is the Schneider mortar, a very efficient weapon, having a remarkably smooth recoil, which has a range of over six miles.
  • This is a paper target handgun and small calibered rifle range.

Definition of calibre in:

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