/ Dictionary / Index F Fourteenth Amendment: Meaning and Definition of Find definitions for: Four'teenth Amend'ment Pronunciation: [key] an amendment to the U.S. Constitution, ratified in 1868, defining national citizenship and forbidding the states to restrict the basic rights of citizens or other persons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fourteenth fourth Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language