coextensive C2 Topic:Describing Qualities Also spelled co-extensive US /ˌkoʊ.ɛkˈstɛn.sɪv/ UK /ˌkəʊ.ɪkˈstɛn.sɪv/ See IPA manual Freq #830774 Meanings 1 adj Having the same spatial limits or boundaries; sharing the same area. The city and county of San Francisco are coextensive. 2 adj Occurring over the same period of time; contemporaneous. His life is almost co-extensive with one of the most disastrous periods in Roman history. 3 adj Having the same extension—the object or set of objects to which a term refers. Coextensive expressions with different intensions cannot in general be substituted for one another within an expression e while preserving the extension of e (assuming that the extension of a declarative sentence is its truth value). 4 adj being of equal extent or scope or duration Thesaurus Synonyms 4 adj · being of equal extent or... conterminouscoterminous Word family Derived forms coextensivelycoextensiveness Related forms coextensioncoterminousextensive Etymology From co- + extensive. Topics Describing Qualities External links Cambridge Dictionary Wiktionary Google Images # coextensive **Type:** Word **Level:** C2 **Part of speech:** adj **IPA (US):** /ˌkoʊ.ɛkˈstɛn.sɪv/ **IPA (UK):** /ˌkəʊ.ɪkˈstɛn.sɪv/ **Frequency rank:** 830774 ## Meanings 1. Having the same spatial limits or boundaries; sharing the same area. 2. Occurring over the same period of time; contemporaneous. 3. Having the same extension—the object or set of objects to which a term refers. 4. being of equal extent or scope or duration ## Examples - The city and county of San Francisco are coextensive. - His life is almost co-extensive with one of the most disastrous periods in Roman history. - Coextensive expressions with different intensions cannot in general be substituted for one another within an expression e while preserving the extension of e (assuming that the extension of a declarative sentence is its truth value). ## Derived Forms - coextensively - coextensiveness ## Related Forms - coextension - coterminous - extensive ## Etymology From co- + extensive. ## Topics - Describing Qualities markdown