/ Dictionary / Index S semisubterranean: Meaning and Definition of Find definitions for: sem•i•sub•ter•ra•ne•an Pronunciation: (sem"ē-sub"tu-rā'nē-un, sem"ī-), [key] — adj. half below the surface of the ground: the semisubterranean houses of some Indian tribes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. semisubmersible semisweet Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language