Thrift means careful management of money, or savings bank or credit union, or a plant which is a member of the genus Armeria, family Plumbaginaceae and order Plumbaginales. (noun)
See thrift in Webster's New World College Dictionary
noun
Obsolete
the condition of thriving; prosperity
physical thriving; vigorous growth
careful management of one's money or resources; economy; frugality
any of a genus (Armeria, family Plumbaginaceae) of dwarf, evergreen, perennial dicotyledonous plants (order Plumbaginales) with narrow leaves and small, white, pink, red, or purplish flowers
☆ a mutual savings bank, savings and loan association, or credit union: usually used in pl.
Wise economy in the management of money and other resources; frugality.
Vigorous growth of living things, such as plants.
Any of several densely tufted plants of the genus Armeria, especially A. maritima, having white to pink flower heads with a funnel-shaped scarious calyx.
A savings and loan association, credit union, or savings bank. Also called thrift institution.