| 18-yard box, in soccer | 22 |
| 18-wheelers, essentially | 24 |
| 18-wheeled equipment mover | 26 |
| 18-season Mariner Martinez | 26 |
| 18-0 baseball win, e.g. | 23 |
| 18- or 19-string instrument | 27 |
| 18, 19, and 20 of a series | 26 |
| 18, 19 and 20 of a series | 25 |
| 18, 19 and 20 in a series | 25 |
| 18 to 20 in a sequence | 22 |
| 18 through 20, in a run | 23 |
| 18 of 38 roulette numbers | 25 |
| 18 inches, give or take | 23 |
| 17th-century sea menace | 23 |
| 17th-century rationalist | 24 |
| 17th-century Quaker martyr | 26 |
| 17th-century poet Francis ___ | 29 |
| 17th-century painter Jan | 24 |
| 17th-century London theatre | 27 |
| 17th-century French dramatist | 29 |
| 17th-century Dutch painter | 26 |
| 17th-century dramatist | 22 |
| 17th-century diarist Samuel | 27 |
| 17th-century court dance | 24 |
| 17th-century composer Henry | 27 |
| 17th-century Baroque sculptor | 29 |
| 17th-century artistic style | 27 |
| 17th-century artist, perhaps | 28 |
| 17th-century actress Nell | 25 |
| 17th-C. French explorer | 23 |
| 17th letters of an alphabet | 27 |
| 17th century's end | 22 |
| 17th century Seneca foes | 24 |
| 17th century court dance | 24 |
| 17th C. stringed instruments | 28 |
| 1799 Egyptian discovery | 23 |
| 1796 Napoleonic battle site | 27 |
| 1796 Napoleon battle site | 25 |
| 1794 patent awardee Whitney | 27 |
| 1790s diplomatic powder keg | 27 |
| 1788 stop for the Bounty | 24 |
| 1786 rebellion's eponym | 27 |
| 1778 visitor to Hawaii | 22 |
| 1777 Pennsylvania battle site | 29 |
| 1776 and 2001, e.g.: Abbr. | 26 |
| 1775 foe of the British | 23 |
| 1773 jetsam in Boston Harbor | 28 |
| 1773 Boston Harbor jetsam | 25 |
| 1751 Henry Fielding novel | 25 |
| 1740 Samuel Richardson novel | 28 |
| 17-syllable verse form | 22 |
| 17-syllable form of poetry | 26 |
| 17-mission space program | 24 |
| 17-mission NASA program | 23 |
| 17-1 baseball score, e.g. | 25 |
| 17 1/2 million square miles | 27 |
| 16th-century Spanish mystic | 27 |
| 16th-century Spanish fleet | 26 |
| 16th-century Spanish explorer | 29 |
| 16th-century Spain, for one | 27 |
| 16th-century Italian sculptor | 29 |
| 16th-century Florentine food? | 29 |
| 16th-century council site | 25 |
| 16th-century council city | 25 |
| 16th-century circumnavigator | 28 |
| 16th-century artist Veronese | 28 |
| 16th president, informally | 26 |
| 16th president, familiarly | 26 |
| 16th president's nickname | 29 |
| 16th president familiarly | 26 |
| 16th letters in Hebrew | 22 |
| 16th century's end | 22 |
| 16th century painter Veronese | 29 |
| 16th century Italian poet | 25 |
| 16th century dramatist Thomas | 29 |
| 16th century council site | 25 |
| 16th C. ecumenical council | 26 |
| 1692 witch trials setting | 25 |
| 1692 witch trials city | 22 |
| 1676 Virginia uprising | 22 |
| 1669 sight for Louis Jolliet | 28 |
| 1669 Louis Jolliet discovery | 28 |
| 1666 London fire chronicler | 27 |
| 1655 conqueror of New Sweden | 28 |
| 1650, in Roman numerals | 23 |
| 164-foot-tall movie star | 24 |
| 1600 to 1800, on a boat | 23 |
| 1600 Pennsylvania Ave., e.g. | 28 |
| 16-year-old, typically | 22 |
| 16-year-old's want | 22 |
| 16-year-old's desire | 24 |
| 16-time medalist Michael | 24 |
| 16-symbol system, for short | 27 |
| 16-1 baseball score, e.g. | 25 |
| 16 or Seventeen, for short | 26 |
| 16 and Seventeen, for short | 27 |
| 15th-century maritime name | 26 |
| 15th-century king of France | 27 |
| 15th-century imperialist | 24 |
| 15th-century Flemish painter | 28 |