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).
Amira has been climbing in recent years. All-time it's been given to 40,344 U.S. babies, the 276th most common name by sound today, peaking at 3,055 in 2024, with 2,943 in 2025.
By sound, Amira also includes the spellings Amirah, Ameera, Amirrah.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).