seven

a. [ OE. seven, seoven, seofen, AS. seofon, seofan, seofen; akin to D. zeven, OS., Goth., & OHG. sibun, G. sieben, Icel. sjau, sjö, Sw. sju, Dan. syv, Lith. septyni, Russ. seme, W. saith, Gael. seachd, Ir. seacht, L. septem, Gr. &unr_;&unr_;&unr_;, Skr. saptan. √305. Cf. Hebdomad, Heptagon, September. ] One more than six; six and one added; as, seven days make one week. [ 1913 Webster ]

Seven sciences. See the Note under Science, n., 4. --
Seven stars (Astron.), the Pleiades. --
Seven wonders of the world. See under Wonders. --
Seven-year apple (Bot.), a rubiaceous shrub (Genipa clusiifolia) growing in the West Indies; also, its edible fruit. --
Seven-year vine (Bot.), a tropical climbing plant (Ipomœa tuberosa) related to the morning-glory. [ 1913 Webster ]

adv. Seven times as much or as often. [ 1913 Webster ]

Whosoever slayeth Cain, vengeance shall be taken on him sevenfold. Gen. iv. 15. [ 1913 Webster ]

a. Repeated seven times; having seven thicknesses; increased to seven times the size or amount. “Sevenfold rage.” Milton. [ 1913 Webster ]

n. A week; any period of seven consecutive days and nights. See Sennight. [ 1913 Webster ]

n. & a. Seven times twenty, that is, a hundred and forty. [ 1913 Webster ]

The old Countess of Desmond . . . lived sevenscore years. Bacon. [ 1913 Webster ]

n. A firearm, esp. a pistol, with seven barrels or chambers for cartridges, or one capable of firing seven shots without reloading. [ Colloq. ] [ 1913 Webster ]

a. [ OE. seventene, AS. seofont&ymacr_;ne, i. e., seven-ten. Cf. Seventy. ] One more than sixteen; ten and seven added; as, seventeen years. [ 1913 Webster ]

n. 1. The number greater by one than sixteen; the sum of ten and seven; seventeen units or objects. [ 1913 Webster ]

2. A symbol denoting seventeen units, as 17, or xvii. [ 1913 Webster ]