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).
Aylin
Aylin climbed for decades and has been a steadily popular name ever since. All-time it's been given to 16,935 U.S. babies, the 793rd most common name by sound today, peaking at 899 in 2015, with 885 in 2025.
Aylin has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).