/ Dictionary / Index S sinecure: Meaning and Definition of Find definitions for: si•ne•cure Pronunciation: (sī'ni-kyoor", sin'i-), [key] — n. an office or position requiring little or no work, esp. one yielding profitable returns. an ecclesiastical benefice without cure of souls. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sinecure (Thesaurus) sine sine curve Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language