Term: blue flag: a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: treasure ship: a 16th-century ship loaded with treasure
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: pandiculation: yawning and stretching (as when first waking up)
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: correspondence course: a course offered (by mail) by a correspondence school
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: decimation: destroying or killing a large part of the population (literally every tenth person as chosen by lot)
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: backbencher: a member of the House of Commons who is not a party leader
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: prosthesis: corrective consisting of a replacement for a part of the body
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: eusporangium: a sporangium that arises from a group of epidermal cells
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: passenger ship: a ship built to carry passengers
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: cynthia moth: large Asiatic moth introduced into the United States; larvae feed on the ailanthus
Broader: iris: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Unrelated: savings and loan: a thrift institution that is required by law to make a certain percentage of its loans as home mortgages