Initialism of catalogue number. / (anatomy) Initialism of cranial nerve.

(initialism, Canada) Initialism of Canadian National: a national trans-continental railway of Canada

(neuroanatomy) Initialism of central nervous system.

plural of CN

chloroacetophenone used as tear gas for riot control, although it is normally replaced nowadays with CS gas.

A communications and observation tower in Toronto, Ontario, Canada.

(computing, manufacturing) computer numerical control or computerized numerical control / (chemistry) cellulose nanocrystal (also NCC) / consensual non-consent / (historical) Chinese National Currency

(Britain) Initialism of Campaign for Nuclear Disarmament.

The section of the leg from the knee to the ankle; shin.

Initialism of Council for National Academic Awards.