| Third-party collateral | 22 |
| Third-party candidate, perhaps | 30 |
| Third-party candidate, more often than not | 42 |
| Third-party candidate, maybe | 28 |
| Third-party candidate of 2000 | 29 |
| Third-party candidate of '92 | 32 |
| Third-party candidate in 1992 | 29 |
| Third-party accounts | 20 |
| Third-party account for a mortgager | 35 |
| Third-party account | 19 |
| Third-party abbr. | 17 |
| Third-oldest U.S. university | 28 |
| Third-most common gas in the atmosphere | 39 |
| Third-millennium year | 21 |
| Third-longest river of California | 33 |
| Third-longest river in Africa | 29 |
| Third-lightest halogen | 22 |
| Third-least populous U.S. state | 31 |
| Third-leading U.S. crop behind corn and wheat | 45 |
| Third-largest US city | 21 |
| Third-largest Turkish city | 26 |
| Third-largest of the Balearic Islands | 37 |
| Third-largest ocean | 19 |
| Third-largest nation | 20 |
| Third-largest moon of Saturn | 28 |
| Third-largest Italian island | 28 |
| Third-largest island of Italy | 29 |
| Third-largest island in the Caribbean | 37 |
| Third-largest island | 20 |
| Third-largest Hawaiian island | 29 |
| Third-largest E African lake | 28 |
| Third-largest city of France | 28 |
| Third-largest city in the Soviet Union | 38 |
| Third-largest city in Puerto Rico | 33 |
| Third-largest city in Poland | 28 |
| Third-largest city in Japan | 27 |
| Third-largest city in Italia | 28 |
| Third-largest asteroid | 22 |
| Third-generation tablet of 2012 | 31 |
| Third-generation son | 20 |
| Third-generation release of 2012 | 32 |
| Third-generation Oscar winner | 29 |
| Third-generation nickname | 25 |
| Third-generation man, in the Bible | 34 |
| Third-generation Japanese-Americans | 35 |
| Third-generation Japanese-American | 34 |
| Third-generation Genesis name | 29 |
| Third-generation Genesis figure | 31 |
| Third-degree, in math | 21 |
| Third-day creations | 19 |
| Third-day creation | 18 |
| Third-column stat | 17 |
| Third-col. heading | 18 |
| Third-century year of Philip the Arab's birth | 49 |
| Third-century year | 18 |
| Third-century starter | 21 |
| Third-century sackers | 21 |
| Third-century pope | 18 |
| Third-century martyr | 20 |
| Third-century invaders | 22 |
| Third-century date | 18 |
| Third-century Chinese dynasty | 29 |
| Third-busiest U.S. airport | 26 |
| Third-brightest star in a constellation | 39 |
| Third-brightest star | 20 |
| Third-base coach's sign, sometimes | 38 |
| Third-base coach's sign, perhaps | 36 |
| Third-base coach's sign | 27 |
| Third-and-long option | 21 |
| Third, to Caesar | 16 |
| Third, in Thuringia | 19 |
| Third ___ Blind | 15 |
| Third ___ (track adjunct) | 25 |
| Third ___ (dangerous part of a subway track) | 44 |
| Third ___ | 9 |
| Third year of the second century | 32 |
| Third year of Nero's reign | 30 |
| Third year in the reign of Edward the Elder | 43 |
| Third X, perhaps | 16 |
| Third X, in a simple game | 25 |
| Third X, in a game | 18 |
| Third X or O | 12 |
| Third X in a game | 17 |
| Third X | 7 |
| Third World worry | 17 |
| Third World plight | 18 |
| Third World concern | 19 |
| Third World area | 16 |
| Third word of P.O. motto | 24 |
| Third word of many limericks | 28 |
| Third word of beginner's Latin | 34 |
| Third word of "The Aeneid" | 36 |
| Third word of "Moby-Dick" | 35 |
| Third word of "Moby Dick" | 35 |
| Third word of "Mary's Boy Child" | 46 |
| Third word of "Around the World in Eighty Days" | 57 |
| Third word of "America" | 33 |
| Third word of "America the Beautiful" | 47 |
| Third word of ''America'' | 41 |
| Third word of America | 24 |