What does IUD, a form of birth control, stand for?

A foot and a half equals how many inches? A Foreign Language Oscar went to Vladimir Menshov's 1979 film called "___ Does Not Believe in Tears". Which city? A prong-style setting for diamonds introduced in 1886 is named for which New York jewelry store? In grammar, which form of a word, abbreviated "dim.", indicates smallness, as in "duckling"? Solid, liquid and gas are each a what of matter? What is a formal ball for debutantes called? What kind of formal public statement did Abraham Lincoln issue on January 1, 1863? What is a formal reduction in rank, status or position called?