/ Dictionary / Index A all hail: Meaning and Definition of Find definitions for: all' hail' Pronunciation: [key] — Archaic. Archaic. a salutation of greeting or welcome. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. all fours Allhallowmas Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language