Border and Internal organ

Border

Border noun - The line or relatively narrow space that marks the outer limit of something.

Internal organ is an antonym for border.

Internal organ

Internal organ noun - A main organ that is situated inside the body.
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Synonyms for Internal organ

Border is an antonym for internal organ in interior topic.
Cite this Source
Internal organ and Border. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/border/internal_organ
Border & Internal organ. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/border/internal_organ>.
Internal organ or Border. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/border/internal_organ.
Google Ngram Viewer shows how "border" and "internal organ" have occurred on timeline