How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Savannah
Savannah has dropped sharply from its peak but is still widely used. All-time it's been given to 240,265 U.S. babies, the 252nd most common name by sound today, peaking at 9,367 in 2000, with 2,405 in 2025.
By sound, Savannah also includes the spellings Savanna, Savanah, Savana.
Rising