1.
an organization of Irish nationalists originally set up to strive for an independent Ireland by force of arms and still dedicated to achieving the unity of the island of Ireland.
2.
a plan in the United States that permits working people to invest money for retirement and pay no tax on the amount invested either at the time of investment or after retirement.
3.
individual retirement account: money that people can save without paying taxes on it until they begin to use the money when they are older