Seven \Sev"en\, a. [OE. seven, seoven, seofen, AS. seofon, seofan, seofen; akin to D. zeven, OS., Goth., & OHG. sibun, G. sieben, Icel. sjau, sj["o], Sw. sju, Dan. syv, Lith. septyni, Russ. seme, W. saith, Gael. seachd, Ir. seacht, L. septem, Gr. ???, Skr. saptan. [root]305. Cf. Hebdomad, Heptagon, September.]

One more than six; six and one added; as, seven days make one week.

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 (Ipom[oe]a tuberosa) related to the morning-glory.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Seven \Sev"en\, n.

1. The number greater by one than six; seven units or objects.

Of every beast, and bird, and insect small, Game sevens and pairs. --Milton.

2. A symbol representing seven units, as 7, or vii.

Source: Webster's Revised Unabridged Dictionary (1913)