/ Dictionary / Index D doorsill: Meaning and Definition of Find definitions for: door•sill Pronunciation: (dôr'sil", dōr'-), [key] — n. the sill of a doorway. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: doorsill (Thesaurus) door prize doorstead Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language