| One of the Hindu Trinity | 24 |
| One of the Hoggs of Tex. | 24 |
| One of the Home Counties | 24 |
| One of the HOMES lakes | 22 |
| One of the honeymooners | 23 |
| One of the Howard brothers | 26 |
| One of the Huxtable girls | 25 |
| One of the Huxtable kids | 24 |
| One of the Huxtables on TV | 26 |
| One of the Indian languages | 27 |
| One of the Indianapolis 500 | 27 |
| One of the Indigo Girls | 23 |
| One of the inert gases | 22 |
| One of the inner circle | 23 |
| One of the Inner Hebrides | 25 |
| One of the Ionian Islands | 25 |
| One of the Islas Baleares | 25 |
| One of the Isley Brothers | 25 |
| One of the Ivies, for short | 27 |
| One of the Ivies, informally | 28 |
| One of the Jackson Five | 23 |
| One of the Joliot-Curies | 24 |
| One of the Jonas brothers | 25 |
| One of the judges in Judges | 27 |
| One of the Kahns et al. | 23 |
| One of the Karamazov brothers | 29 |
| One of the Kardashians | 22 |
| One of the Katzenjammer Kids | 28 |
| One of the Keebler elves | 24 |
| One of the Kennedy clan | 23 |
| One of the kin (Abbr.) | 22 |
| One of the King Sisters | 23 |
| One of the king's men | 25 |
| One of the kings in Kings | 25 |
| One of the kitchen police | 25 |
| One of the landed gentry | 24 |
| One of the lanthanides | 22 |
| One of the leagues: Abbr. | 25 |
| One of the Leeward Antilles | 27 |
| One of the Leeward Islands | 26 |
| One of the Lennon sisters | 25 |
| One of the lesser Kardashians | 29 |
| One of the Lesser Sundas | 24 |
| One of the Levant States | 24 |
| One of the literary Waughs | 26 |
| One of the Little Einsteins | 27 |
| One of the little foxes | 23 |
| One of the little people | 24 |
| One of the little piggies | 25 |
| One of the Little Women | 23 |
| One of the living dead | 22 |
| One of the Long fellows | 23 |
| One of the Longs of La. | 23 |
| One of the Lost Generation | 26 |
| One of the Lower Lakes | 22 |
| One of the Loyalty Islands | 26 |
| One of the M's in MMR | 25 |
| One of the M's in MoMA | 26 |
| One of the maj. leagues | 23 |
| One of the major religions | 26 |
| One of the Manning brothers | 27 |
| One of the Manning NFLers | 25 |
| One of the March girls | 22 |
| One of the March sisters | 24 |
| One of the March women | 22 |
| One of the Mario brothers | 25 |
| One of the Marsalis brothers | 28 |
| One of the Marshall Islands | 27 |
| One of the martial arts | 23 |
| One of the Marx brothers | 24 |
| One of the Maverick brothers | 28 |
| One of the Mayberry gang | 24 |
| One of the media: Abbr. | 23 |
| One of the media: Var. | 22 |
| One of the men behind bars | 26 |
| One of the Menendez brothers | 28 |
| One of the Mercury Seven | 24 |
| One of the midday-sun seekers | 29 |
| One of the Minor Prophets | 25 |
| One of the moons of Uranus | 26 |
| One of the moveable feasts | 26 |
| One of the Mrs. Sinatras | 24 |
| One of the Ms. Pac-Man ghosts | 29 |
| One of the musical B's | 26 |
| One of the musical Guthries | 27 |
| One of the Near Islands | 23 |
| One of the New Hebrides | 23 |
| One of the NFL Mannings | 23 |
| One of the Nielsen brothers | 27 |
| One of the nightshade family | 28 |
| One of the noble gases | 22 |
| One of the noble metals | 23 |
| One of the North Africans | 25 |
| One of the O'Neills | 23 |
| One of the Oasis brothers | 25 |
| One of the Obama daughters | 26 |
| One of the Obama girls | 22 |
| One of the oceans: Abbr. | 24 |
| One of the Olsen sisters | 24 |
| One of the Olsen twins | 22 |