noun

caliber

calibre, quality, standard

This is a .22 caliber rifle.

This is a .22 calibre rifle.

She is a writer of the highest caliber.

She is a writer of the highest calibre.

((...)) caliber ((noun)) (a certain) caliber (noun) This is a .22 caliber rifle.

of ((...)) caliber of (a certain) quality She is a writer of the highest caliber.

Synonyms: quality, standard, level, ability; For guns: bore, gauge

From Arabic 'qālib' (a mould), via Old French 'calibre'. The sense evolved from a mould's size to a gun's bore size, then figuratively to a person's quality.

Think of 'calibrating' an instrument to a high standard. This connects to the meaning of 'caliber' as a high level of quality or ability.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.