/ Dictionary / Index S southeaster: Meaning and Definition of Find definitions for: south•east•er Pronunciation: (south"ē'sturNaut.sou"ē'stur), [key] — n. a wind or storm from the southeast. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: southeaster (Thesaurus) southeast by south southeasterly 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