Wide island
A modern spelling variant of Sydney, which originates from an Old English place name meaning 'wide island' or 'well-watered meadow'. While sometimes associated with the French Saint-Denis, its primary roots are English and geographical.
Fewer than 5 girls were named Cydni in 2025.
US births per 5-year period, 1990–present (SSA data).
Alternative spelling for the iconic pop singer Cyndi Lauper
