/ Dictionary / Index S septenary: Meaning and Definition of Find definitions for: sep•te•nar•y Pronunciation: (sep'tu-ner"ē), [key] — adj., n., pl. -nar•ies. —adj. of or pertaining to the number seven or forming a group of seven. septennial. —n. a group or set of seven. a period of seven years. the number seven. a line of seven feet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: septenary (Thesaurus) septenarius septendecillion Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language