/ Dictionary / Index U Upper Tunguska: Meaning and Definition of Find definitions for: Up'per Tungu'ska Pronunciation: [key] the lower course of the Angara River. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Upper Silesia Upper Volta Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language