eighteenth amendment eighteenth • eighteenthly · · · Info · Definitions · Characters · · eighteenth amendment · · Text Common · · Latin · · Scripts 20 · · Length 6 · · Syllables Definitions · · · (noun) an amendment to the Constitution of the United States adopted in 1920; prohibited the manufacture and sale of alcoholic beverages; repealed in 1932. Synonyms: Eighteenth Amendment. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074