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).
Sabrina
Sabrina is now well below its former popularity. All-time it's been given to 142,948 U.S. babies, the 758th most common name by sound today, peaking at 5,823 in 1997, with 956 in 2025.
Sabrina has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).