coterminous

alternative conterminous

1. not comparablegeographyHaving matching boundaries; or, adjoining and sharing a boundary.

   New York's borough of Brooklyn and Kings County are coterminous.

   4 more examples

   To get a building warrant he had to show the plans to "coterminous proprietors", neighbours with whom his property shared a boundary.

   It has been the close vicinity of slave-owners to each other, the fact that their lands have been coterminous, that theirs was especially a cotton district, which has tempted them to secession.

   1862, Anthony Trollope, North America. […], volume II, London: Chapman & Hall, […], →OCLC

   These eighty-two parishes were roughly coterminous with the existing seigneuries, but not always so.

   1915, William Bennett Munro et al., The Seigneurs of Old Canada (Chronicles of Canada), volume 5

   The village of Kiryas Joel, coterminous with the town of Palm Tree, is a well-known Hasidic Orthodox Jewish community.

   2025 June 6, Lana Bellamy, “Orthodox communities see surge in population”, in Times Union, archived from the original on 03 Jul 2025

   Synonyms: coextensive

2. broadlynot comparableHaving the same scope, range of meaning, or extent in time.

   From this it follows at once that language and thought are not strictly coterminous.

   1921, Edward Sapir, Language: An introduction to the study of speech

   2 more examples

   But it is purely fantastic unless we bear in mind that the governing class has been continually compelled to enlarge itself, and that its tendency is reluctantly to go on doing so until in the end it will be coterminous with the "governed class."

   1919, Robert Lynd, Old and New Masters

   The elision of moral and moralising arguments is common, but the two aren't coterminous.

   2022, China Miéville, chapter 4, in A Spectre, Haunting: On the Communist Manifesto, →OCLC

3. not comparablelawSaid of linked or related property leases that expire together.