Save Type Island Usage English Pronounced Pron. /ˈsɪd.ni/ [key·simplify] Meaning & History Means "wide island", from Old English sid "wide" and eg "island". This is the name of a place in Surrey. Related NamesFamily Tree·Details Given Name DescendantsCydney, Sidney, Sydnee, Sydney, Sydnie, Sydne(English) Surname DescendantsSidney, Sydney(English)