Octad
Octad noun - The cardinal number that is the sum of seven and one.
Show all Definitions
Synonyms for Octad
Octonary
Octonary noun - The cardinal number that is the sum of seven and one.
Show all Definitions
Synonyms for Octonary
Cite this Source
Octonary and Octad. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/octad/octonary
Octad & Octonary. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/octad/octonary>.
Octonary or Octad. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/octad/octonary.
Google Ngram Viewer shows how "octad" and "octonary" have occurred on timeline