Mutual synonyms
Both words in one sentence
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Sonic X: Dark Chaos: Humans were descended from Angels who originally colonized Earth as an outpost on the Federation border.
Source: Ancient Astronauts - The Battle of Saragarhi: 21 Sikh soldiers of the 36th Sikh Regiment in British Indian Army were stationed at a remote and lightly fortified outpost on the northern Indian border.
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Their prices are pretty cheap, unsurprisingly... Reassigned to Antarctica: The town of Stangard, an outpost guarding the border of Rohan.
Cite this Source
Outpost and Border. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/border/outpost
Border & Outpost. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/border/outpost>.
Outpost or Border. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/border/outpost.
Google Ngram Viewer shows how "border" and "outpost" have occurred on timeline