Proper noun
(countable) A habitational surname from Old English.
A town in Middlesex County, Connecticut, United States.
(uncountable) A placename:
A town in the Metropolitan Borough of North Tyneside, Tyne and Wear, England (OS grid ref NZ2771).
A small town in the City of Lake Macquarie, New South Wales, Australia.
Source: en.wiktionary.orgAlmost standard gauge * the Killingworth Colliery tramway, used maincheck. Source: Internet
He did so with such success that he was promoted to enginewright for the collieries at Killingworth, responsible for maintaining and repairing all the colliery engines. Source: Internet
He lived in Killingworth, Connecticut while writing most of the installments to the series. Source: Internet
In 1811 the pumping engine at High Pit, Killingworth was not working properly and Stephenson offered to fix it. Source: Internet
This line used a gauge of maincheck which Stephenson had used before at the Killingworth wagonway. Source: Internet