Caliber vs. Calibre

Calibernoun

standard spelling of calibre|from=American spelling

Calibernoun

The diameter of the bore, as a cannon or other firearm, or of any tube; or the weight or size of the projectile which a firearm will carry; as, an 8 inch gun, a 12-pounder, a 44 caliber.

Calibernoun

The diameter of round or cylindrical body, as of a bullet or column.

Calibernoun

Fig.: Capacity or compass of mind.

Calibernoun

a degree or grade of excellence or worth;

Calibernoun

diameter of a tube or gun barrel

Caliber

In guns, particularly firearms, caliber (or calibre in British English; sometimes abbreviated as ) is the specified nominal internal diameter of the gun barrel bore - regardless of how or where the bore is measured and whether the finished bore matches that specification. It is measured in inches or in millimeters.

Calibrenoun

Diameter of the bore of a firearm, typically measured between opposite lands.

Calibrenoun

The diameter of round or cylindrical body, as of a bullet, a projectile, or a column.

Calibrenoun

A nominal name for a cartridge type, which may not exactly indicate its true size and may include other measurements such as cartridge length or black powder capacity. Eg 7.62×39 or 38.40.

Calibrenoun

Unit of measure used to express the length of the bore of a weapon. The number of calibres is determined by dividing the length of the bore of the weapon, from the breech face of the tube to the muzzle, by the diameter of its bore. A gun tube the bore of which is 40 feet (480 inches) long and 12 inches in diameter is said to be 40 calibers long.

Calibrenoun

(figuratively) Relative size, importance, magnitude.

Calibrenoun

(figuratively) Capacity or compass of mind.

Calibrenoun

(dated) Degree of importance or station in society.

Calibrenoun

a degree or grade of excellence or worth;

Calibrenoun

diameter of a tube or gun barrel

Calibrenoun

the quality of someone's character or the level of their ability

Calibrenoun

the standard reached by something

Calibrenoun

the internal diameter or bore of a gun barrel

Calibrenoun

the diameter of a bullet, shell, or rocket.

Calibrenoun

the diameter of a body of circular section, such as a tube, blood vessel, or fibre