Caliber is defined as the diameter size of a bullet.(noun)
An example of caliber is a gun that needs a .45 measured bullet.
The definition of caliber is something’s worth or ability.(noun)
An example of caliber is being highly qualified for a job for which you are recommended.
See caliber in Webster's New World College Dictionary
Origin: Fr & Sp, ult. < Ar qālib, a mold, last, < Aram < Gr kalopodion, shoemaker's last, lit., little wooden foot < kalon, wood + pous (gen. podos), foot
See caliber in American Heritage Dictionary 4
Origin: French calibre
Origin: , from Italian calibro
Origin: , from Arabic qālib, qālab, mold, shoe tree
Origin: , from Greek kālapous, shoemaker's last
Origin: : kālon, wood
Origin: + pous, foot; see ped- in Indo-European roots.
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