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).
Jennifer
Jennifer is now well below its former popularity. All-time it's been given to 1,505,769 U.S. babies, the 950th most common name by sound today, peaking at 64,784 in 1972, with 516 in 2025.
By sound, Jennifer also includes the spellings Jenifer, Jeniffer.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).