Synonyms|33Antonyms|0|Broader|0Narrower|0Related|1
4
septuple
3
anniversary
3
biennial
2
jubilee
2
leap year
1
bicentennial
1
centenary
1
centennial
1
commemoration
1
million
1
name day
1
natal day
1
octad
1
octagonal
1
sesquicentennial
1
sevenfold
1
sexennial
1
sextuple
1
sixfold
1
tercentenary
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APASmart Define. (2015). septennial thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/septennial/thesaurus/synonyms
ChicagoSmart Define. 2015. "septennial thesaurus" https://smartdefine.org/septennial/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, septennial thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/septennial/thesaurus/synonyms>.
MLASmart Define. "septennial thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/septennial/thesaurus/synonyms>