noun

caliber

KAL-uh-ber/ˈkæləbər/

The measured internal diameter of a gun barrel.

The specification lists the rifle barrel's internal diameter as its caliber.

Compare the workmanship of three finished wooden bowls of the same design: crude and uneven, competent but imperfect, and exceptionally precise.
Etymology

French calibre connects a gun barrel’s internal diameter with a figurative measure of merit or capacity. The quality sense was already present in the earliest English uses, and the deeper origin is disputed.

In context

BOSS TALK 1018:51
I would just be meeting just a different caliber of people period like UT has the top six percent people in like Texas
Shamariah Picks Brown University & Why | Shamariah Discussion on Being Chosen Salutatorian 2023

More examples

  • The museum displayed bullets of several calibers.
  • The gunsmith measures the barrel to determine its caliber.
  • The display compares rifle barrels of different calibers.

Forms

caliber · calibers

Similar words

diameter
A general measurement across a circle, while caliber has specialized barrel and quality senses.