/ Dictionary / Index G guardian ad litem: Meaning and Definition of Find definitions for: guard•i•an ad li•tem Pronunciation: (gär'dē-un ad lī'tum), [key] — Law. Law. a person appointed by a court as guardian of an infant or other person to act on his or her behalf in a particular action or proceeding. Cf. next friend. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. guardian guardian angel Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language