Frontier
Frontier noun - A region along the dividing line between two countries.
Sovereign state and frontier are semantically related. In some cases you can use "Sovereign state" instead a noun "Frontier".
Nearby Word: frontiersman
Sovereign state
Frontier and sovereign state are semantically related. Sometimes you can use "Frontier" instead a noun phrase "Sovereign state".
Mutual synonyms
Cite this Source
Sovereign state and Frontier. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/frontier/sovereign_state
Frontier & Sovereign state. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/frontier/sovereign_state>.
Sovereign state or Frontier. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/frontier/sovereign_state.
Google Ngram Viewer shows how "frontier" and "sovereign state" have occurred on timeline