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).
Trinity
Trinity has fallen well below its former popularity. All-time it's been given to 91,186 U.S. babies, the 720th most common name by sound today, peaking at 5,949 in 2004, with 764 in 2025.
By sound, Trinity also includes the spellings Triniti.
Rising