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).
Navy
Navy has been climbing in recent years. All-time it's been given to 6,717 U.S. babies, the 704th most common name by sound today, at an all-time high of 1,045 in 2025.
Navy has no common alternate spellings by sound.
Rising