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).
Crystal
Crystal has been slowly declining from its former popularity. All-time it's been given to 481,850 U.S. babies, the 1,136th most common name by sound today, peaking at 25,746 in 1982, with 395 in 2025.
By sound, Crystal also includes the spellings Krystal, Cristal, Chrystal, Krystle, Kristal, Christal, Christel, Kristel.
Rising