Caliber is a kind of measurement that can describe either the level of a person’s ability or the diameter of a gun barrel. Your dad might be a high-caliber marksman, especially when using his .22 caliber rifle.

Caliber describes the level of ability a person has achieved in a profession. For example, you probably wouldn't want to hire a low-caliber plumber when the toilet breaks. The caliber of an institution or a program describes the height of its standards. You might be planning to attend the high-caliber veterinary program at your state university. Caliber is also the measurement of the width inside a gun barrel, and its corresponding bullets.

Primary Meanings of caliber

diameter of a tube or gun barrel
a degree or grade of excellence or worth
Full Definitions of caliber

n diameter of a tube or gun barrel

bore, calibre, gauge
Type of:
diam, diameter
the length of a straight line passing through the center of a circle and connecting two points on the circumference

n a degree or grade of excellence or worth

“an executive of low caliber
calibre, quality
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high quality, superiority
the quality of being superior
inferiority, low quality
an inferior quality
choiceness, fineness
the quality of being very good indeed
first class
the highest rank in a classification
first water
the highest quality gems
cleverness, ingeniousness, ingenuity
the property of being ingenious
the quality of being poorly made or maintained
scrawniness, scrubbiness
the property of being stunted and inferior in size or quality
second class
not the highest quality in a classification
the quality of being poor and inferior and sorry
Type of:
degree, grade, level
a position on a scale of intensity or amount or quality

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