| prop. a. | 1. | Of or pertaining to Lancaster{2}; |
| 2. | Of or pertaining to the city of Lancaster{1}; | |
| 3. | Of or pertaining to the members of the house of Lancaster; | |
| 4. | Of or pertaining to the inhabitants of Lancaster; | |
| prop. n. | 1. | A member (or supporter) of the house of Lancaster. |
| 2. | A resident of Lancaster{1}. |
| Noun | 1. | Lancastrian - a member (or supporter) of the house of Lancaster |
| 2. | Lancastrian - a resident of Lancaster | |
| Adj. | 1. | Lancastrian - of or relating to the former English royal house or their supporters; "Lancastrian royalty" |
| 2. | Lancastrian - of or relating to the English city of Lancaster or its residents; "Lancastrian city center" |