/ Dictionary / Index S Sydney: Meaning and Definition of Find definitions for: Syd•ney Pronunciation: (sid'nē), [key] — n. See a seaport in and the capital of New South Wales, in SE Australia. 2,876,508. a seaport on NE Cape Breton Island, Nova Scotia, in SE Canada. 30,645. a male or female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sydney (Thesaurus) sycosis Sydney silky Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language