the common name for the Chiltern Hills.

A local government district of Buckinghamshire, England, named after the Chiltern Hills (the Chilterns). It was abolished on 31 March 2020. / A town in Victoria, Australia.

a hilly region in southern England, extending from Oxfordshire through Buckinghamshire into Bedfordshire and Hertfordshire.

A hamlet in Central Bedfordshire district, Bedfordshire, England (OS grid ref TL1319).

An ancient administrative area in Buckinghamshire, England, composed of three hundreds and lying partially within the Chiltern Hills.

(UK, politics) To vacate one's seat in the House of Commons (since resignation is not permitted), under the legal fiction of being appointed to an "office of profit under the Crown": the ancient office of Crown Steward for the Chiltern Hundreds, in modern times a mere sinecure.