/ Dictionary / Index L long s: Meaning and Definition of Find definitions for: long s Pronunciation: (es), [key] a style of the letter s, suggesting a lowercase f in form, formerly common in handwriting and as a type character. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: longs (Thesaurus) long-run longship Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language