Alien
Alien noun - A person who comes from a foreign country; someone who does not owe allegiance to your country.
Encroacher and alien are semantically related. In some cases you can use "Encroacher" instead a noun "Alien".
Encroacher
Encroacher noun - Someone who enters by force in order to conquer.
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Synonyms for Encroacher
Mutual synonyms
Cite this Source
Encroacher and Alien. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/alien/encroacher
Alien & Encroacher. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/alien/encroacher>.
Encroacher or Alien. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/alien/encroacher.
Google Ngram Viewer shows how "alien" and "encroacher" have occurred on timeline