1 Brit. a a policeman or policewoman. b (also police constable) a police officer of the lowest rank.
2 the governor of a royal castle.
3 hist. the principal officer in a royal household.
Phrases and idioms:
Chief Constable the head of the police force of a county or other region.
Etymology: ME f. OF conestable f. LL comes stabuli count of the stable
Useful english dictionary. 2012.