calibre

cali|bre /k'ælɪbər/ (calibres)
in AM, use caliber
1 [N-UNCOUNT] with supp, usu adj N, N of n
The calibre of a person is the quality or standard of their ability or intelligence, especially when this is high.
I was impressed by the high calibre of the researchers and analysts...
2 [N-UNCOUNT] with supp, oft N of n
The calibre of something is its quality, especially when it is good.
The calibre of teaching was very high.
3 [N-COUNT] usu with supp, oft num N, adj N
The calibre of a gun is the width of the inside of its barrel. (TECHNICAL)
...a .22 calibre rifle.