coterminous
UK: /kəʊˈtɜːmɪnəs/ | US: /koʊˈtɜːrmɪnəs/
adj. having the same boundaries or limits; coextensive in scope or duration.
The word "coterminous" originates from Latin roots. The prefix "co-" (from Latin "com-") means "together," while "terminus" (Latin for "boundary" or "limit") forms the core of the word. The suffix "-ous" (from Latin "-osus") turns it into an adjective. Historically, the term was used in legal and geographical contexts to describe shared boundaries, evolving into its modern sense of overlapping or identical limits in scope or time.
The two countries are coterminous along the river.
Their terms of office were coterminous, ending on the same day.
The study's focus was coterminous with the scope of the research grant.
The city and county jurisdictions are coterminous in this area.
Their interests are coterminous, leading to a strong partnership.