/ Dictionary / Index S sock lining: Meaning and Definition of Find definitions for: sock' lin"ing Pronunciation: [key] a thin piece of material, as leather, that is laid on top of the insole of a shoe, boot, or other footwear. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sockeye salmon socko Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language