/ Dictionary / Index T tetragram: Meaning and Definition of Find definitions for: tet•ra•gram Pronunciation: (te'tru-gram"), [key] — n. a word of four letters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tetragram (Thesaurus) tetragonal trisoctahedron Tetragrammaton Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language