Sev·en a. 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 (Ipomœa tuberosa) related to the morning-glory.