/ Dictionary / Index S spanner: Meaning and Definition of Find definitions for: span•ner Pronunciation: (span'ur), [key] — n. a person or thing that spans. Also calleda wrench having a curved head with a hook or pin at one end for engaging notches or holes in collars, certain kinds of nuts, etc. Cf. a wrench, esp. one with fixed jaws. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spanner (Thesaurus) span loading span-new Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language