Meaning
We don’t have a verified meaning for Theory.
We only publish meanings we can cite to a source you could check yourself. Most sites will give you one anyway; the ones you find elsewhere are often copied between sites without verification.
Its story
Popularity since 2006
Hover over or drag across the chart to see any year.
See the 15 recorded years as a table
| Year | Per million |
|---|---|
| 2006 | 3 |
| 2012 | 5 |
| 2013 | 5 |
| 2014 | 4 |
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 11 |
| 2022 | 11 |
| 2023 | 12 |
| 2024 | 10 |
| 2025 | 12 |
Where it’s loved
Most popular in these states
Theory isn’t concentrated in any one state. Either it’s spread evenly, or no state reaches the 25 births over three years needed before a rate means anything.
More like it
More like Theory
The numbers
Every figure
- Births in 2025
- 20
- Rank in 2025
- #5,917
- How rare
- 1 in 80,363 girls
- Since 2006
- 165
Most popular in 2023, at 12 per million girls born.
Over the ten years to 2025 it has risen by 217% per million girls born.
Figures from the US Social Security Administration’s 2025 release. How these numbers are made.