Caliber definitions

kăl'ə-bər
The size of a bullet or shell as measured by its diameter.
noun
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The diameter of the bore of a gun, usually measured in hundredths of inches or in millimeters.
noun
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The diameter of a cylindrical body or of its hollowed interior.
noun
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Degree of worth or value of a person or thing; quality or ability.
noun
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The definition of caliber is something’s worth or ability.

An example of caliber is being highly qualified for a job for which you are recommended.

noun
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Caliber is defined as the diameter size of a bullet.

An example of caliber is a gun that needs a .45 measured bullet.

noun
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Degree of worth; quality.

A school of high caliber; an executive of low caliber.

noun
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The diameter of the inside of a round cylinder, such as a tube.
noun
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The diameter of the bore of a firearm, usually shown in hundredths or thousandths of an inch and expressed in writing or print in terms of a decimal fraction.

.45 caliber.

noun
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The diameter of a large projectile, such as an artillery shell, measured in millimeters or in inches.
noun
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American standard spelling of calibre.
noun
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Origin of caliber

French calibre from Italian calibro from Arabic qālib, qālab mold, shoe tree from Greek kālapous shoemaker's last kālon wood pous foot ped- in Indo-European roots