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Synonyms for Extend upon. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/synonyms/extend_upon
Synonyms for Extend upon. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/synonyms/extend_upon>.
Synonyms for Extend upon. 2016. Accessed July 31, 2026. https://thesaurus.plus/synonyms/extend_upon.