1. Diameter of the bore of a gun; capacity of mind. Caliber-compasses, or calibers, see Calipers.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• caliore,
• calbre,
• calire,
• calture,
• cliare,
• callibre,
• calibure,
• calabre,
• calbe,
• calibler,
• caliburs,
• calebrte,
• calble,
• calibor,
• calibar,
• cailbre,
• calibere,
• calib,
• caloire,
• calabra

• caliper,
• calibrated,
• calibrate,
• calabrese,
• caliber,
• call for,
• calliper,
• calabria,
• calipers,
• calabro,
• call fire.

The adjective form of the word "calibre" is "calibred" or sometimes "calibered".

The plural of the "calibre" can be the "calibres".

The singular of the "calibre" can be the "calibre".