| v. t. | 1. | To enlarge by extension of territory. |
| 2. | To reduce to the condition of a territory. |
| Verb | 1. | territorialize - organize as a territory Synonyms: territorialise |
| 2. | territorialize - place on a territorial basis; "The railways were territorialized" Synonyms: territorialise | |
| 3. | territorialize - extend by adding territory Synonyms: territorialise |