| SEPTENARY | • septenary adj. Consisting of or containing seven. • septenary adj. Of seventh rank or order. • septenary adj. Lasting seven years; continuing seven years. | 
| SEPTENNIA | • septennia n. Plural of septennium. • SEPTENNIUM n. a period of seven years. | 
| SEPTENARII | • septenarii n. Plural of septenarius. • SEPTENARIUS n. a seven-foot verse, esp. a trochaic tetrameter catalectic. | 
| SEPTENNATE | • septennate n. A period of seven years. • SEPTENNATE n. a period of seven years; as, the septennate during which the President of the French Republic holds office. | 
| SEPTENNIAL | • septennial adj. Of or relating to a 7 year period. • SEPTENNIAL adj. lasting or continuing seven years; as, septennial parliaments. | 
| SEPTENNIUM | • septennium n. A period of seven years. • SEPTENNIUM n. a period of seven years. | 
| SEPTENARIES | • septenaries n. Plural of septenary. • SEPTENARY n. a group of seven. | 
| SEPTENARIUS | • septenarius n. (Prosody) A verse having seven metrical feet. • SEPTENARIUS n. a seven-foot verse, esp. a trochaic tetrameter catalectic. | 
| SEPTENNATES | • septennates n. Plural of septennate. • SEPTENNATE n. a period of seven years; as, the septennate during which the President of the French Republic holds office. | 
| SEPTENNIUMS | • septenniums n. Plural of septennium. • SEPTENNIUM n. a period of seven years. | 
| SEPTENTRIAL | • septentrial adj. Obsolete form of septentrional. • SEPTENTRIAL adj. (obsolete) northern, also SEPTENTRIONAL. | 
| SEPTENTRION | • septentrion n. (Obsolete) The north or northern regions. • septentrion adj. (Obsolete) Of or relating to the north; northern. • SEPTENTRION n. (archaic) the north. | 
| SEPTENNIALLY | • septennially adv. Once in every seven years. • SEPTENNIAL adv. lasting or continuing seven years; as, septennial parliaments. | 
| SEPTENTRIONS | • septentrions n. Plural of septentrion. • SEPTENTRION n. (archaic) the north. | 
| SEPTENTRIONAL | • septentrional adj. (Rare, literary) Pertaining to the north; northern. • SEPTENTRIONAL adj. (obsolete) northern, also SEPTENTRIAL. | 
| SEPTENTRIONES | • SEPTENTRION n. (archaic) the north. | 
| SEPTENDECILLION | • septendecillion num. (Rare, US, modern British & Australian, short scale) 1054. • septendecillion num. (Rare, dated British & Australian, long scale) 10102. • SEPTENDECILLION n. ten to the power of 54. | 
| SEPTENTRIONALLY | • septentrionally adv. (Obsolete, nonce word) northerly. • SEPTENTRIONAL adv. (obsolete) northern, also SEPTENTRIAL. |