| 100% | NOAH | 4 | Most popular boy's name in 2013, demoting Jacob for the first time since 1999 |
| 46% | LIAM | 4 | Most popular name for boys in the U.S. in 2017 and 2018 |
| 43% | NOAH | 4 | Most popular name for boys born in the US in 2015 |
| 43% | AARON | 5 | Alphabetically first of the 100 most popular boys' names in the U.S. |
| 42% | LIAM | 4 | Most popular boys’ name of 2022, in the U.S. |
| 40% | JACOB | 5 | Most popular U.S. baby name for boys, 1999-2012 |
| 38% | NOAH | 4 | Second-most-popular name for baby boys in the U.S. in 2022 |
| 37% | USPOSTAGE | 9 | It fell in 2016 for the first time since 1919 |
| 37% | LPS | 3 | In 2020, they outsold CDs for the first time since 1986 |
| 35% | BART | 4 | First name of the only fictional character in Time's list of the 100 Most Important People of the Century |
| 35% | JAMES | 5 | Most popular boy's name of the past 100 years, according to the Social Security Administration |
| 35% | AVA | 3 | The most popular three-letter name for American baby girls in 2018 |
| 35% | LIAM | 4 | The most common name for baby boys born in America in 2018 |
| 35% | LIAM | 4 | The most common name for baby boys born in America in 2020 |
| 35% | VINYL | 5 | Medium that outsold CDs in 2020 for the first time since the 1980s |
| 34% | JACOB | 5 | Most popular baby boy's name of the 2000s |
| 33% | GRAYHOLE | 8 | Outer space phenomenon photographed for the first time in 2019 |
| 33% | SAUDI | 5 | ___ Arabia (nation where women voted for the first time in 2015) |
| 33% | WOMENSWORLDCUP | 14 | FIFA event held for the first time in 1991 (3 wds.) |
| 33% | RADIO | 5 | It was used to play music for the first time in 1906 |
| 32% | SAUDIS | 6 | Women who were legally permitted to drive for the first time in 2018 |
| 32% | JAMESBOND | 9 | British spy played by 33-Across for the first time in 48-Across (2 wds.) |
| 32% | MARINEONE | 9 | Presidential carrier that flew with an all-women crew for the first time in 2009 |
| 32% | BLUECHECK | 9 | Mark obtained by paying for the premium service named in this answer's first word |
| 32% | LOS | 3 | First word in the name of the U.S.'s most populous county |
| 31% | EMMA | 4 | Second-most popular name for baby girls in the US in 2023, after Olivia |
| 31% | EMMA | 4 | The most popular newborn girl's name in the US in 2018 |
| 31% | RIIS | 4 | Jacob for whom a park in the Rockaways is named |
| 31% | SOVIET | 6 | What the first S in USSR stood for |
| 31% | SOVIET | 6 | What the first S stood for in USSR |