Definition of "QC"

(Canada) Abbreviation of Quebec, a province of Canada.  examples

(Canada) Abbreviation of Quebec City, capital of the province of Quebec, Canada.  examples

(Philippines) Initialism of Quezon City, city in Metro Manila and former capital of the Philippines.  examples

(UK, Canada, New Zealand, occasionally Australia) Initialism of Queen's Counsel. and postnominal.  examples

Initialism of quality control.  examples

(aviation) Initialism of quick change: a type of aircraft that can be rapidly switched between passenger and cargo configurations  examples