lancaster'
n. countable B2 Upper Intermediate US //ˈɫænˌkæstɝ// lan·cas·ter
n. a historic city in the northwest of England, or the name of a famous royal family from English history. You might hear it when people talk about the 'House of Lancaster' and the Wars of the Roses.
n. a city in Lancashire, England, or the royal house that descended from John of Gaunt and ruled England from 1399 to 1461. When referring to the royal dynasty, it is usually preceded by 'the House of'.
Usage
Usually capitalized as a proper noun; when referring to the royal family, it functions as a collective noun phrase.