| 20th anniversary symbol | 23 |
| 20th century abstract impressionist | 35 |
| 20th century art movement | 25 |
| 20th century artist inspired by mythology | 41 |
| 20th century basso Pinza | 24 |
| 20th Century Fox picture? | 25 |
| 20th century Mexican revolutionary | 34 |
| 20th century struggle | 21 |
| 20th century witch hunt | 23 |
| 20th Greek letter | 17 |
| 20th in a series | 16 |
| 20th largest island in the U.S. | 31 |
| 20th letter of the Greek alphabet | 33 |
| 20th letter of the Hebrew alphabet | 34 |
| 20th of a franc, once | 21 |
| 20th of a ton: Abbr. | 20 |
| 20th wedding anniversary gift | 29 |
| 20th, e.g.: Abbr. | 17 |
| 20th-anniversary gift | 21 |
| 20th-c. nation | 14 |
| 20th-c. upheaval | 16 |
| 20th-cen. calamity | 18 |
| 20th-cen. conflagration | 23 |
| 20th-cen. largely female labor org. | 35 |
| 20th-cen. superpower | 20 |
| 20th-century art movement | 25 |
| 20th-century artist with notable eyebrows | 41 |
| 20th-century Canadian composer André | 39 |
| 20th-century cartoonist who wrote "He Done Her Wrong," a 300-page pantomime tale | 90 |
| 20th-century Christian | 22 |
| 20th-century combat, Bard-style? | 32 |
| 20th-century composer Harris | 28 |
| 20th-century cultural protesters | 32 |
| 20th-century European leader for over 30 years | 46 |
| 20th-century events | 19 |
| 20th-century field | 18 |
| 20th-century first lady | 23 |
| 20th-century French dramatist | 29 |
| 20th-century French leader | 26 |
| 20th-century French painter | 27 |
| 20th-century German leader's moniker | 40 |
| 20th-century illustrator | 24 |
| 20th-century maestro __ Walter | 30 |
| 20th-century master of the [circled letters] | 44 |
| 20th-century Mexican conductor __ Mata | 38 |
| 20th-century musical giant | 26 |
| 20th-century play | 17 |
| 20th-century pope | 17 |
| 20th-century revolutionary | 26 |
| 20th-century Riyadh-born ruler | 30 |
| 20th-century scandal | 20 |
| 20th-century South American leader | 34 |
| 20th-century Spanish painter | 28 |
| 20th-century treaty topic | 25 |
| 20th-century tree painting? | 27 |
| 20th-century virologist | 23 |
| 20th-century White House nickname | 33 |
| 20th-century writer | 19 |
| 20th-dynasty ruler | 18 |
| 21 | 2 |
| 21 in cards | 12 |
| 21 combo | 8 |
| 21 in two cards | 15 |
| 21 or over, liquorwise | 22 |
| 21 request | 10 |
| 21 shillings, once | 18 |
| 21 words | 8 |
| 21 ___ (Shaquille O'Neal's shoe size) | 45 |
| 21, at a casino, say | 20 |
| 21, e.g. | 8 |
| 21, for many new drinkers | 25 |
| 21, for one | 11 |
| 21, in blackjack | 16 |
| 21, maybe | 9 |
| 21, often | 9 |
| 21,730-pg. references | 21 |
| 21-35 range, maybe | 18 |
| 21-Emmy winner in '07 | 25 |
| 21-gun ritual | 13 |
| 21-gun salute, e.g. | 19 |
| 21-season pitcher Darwin | 24 |
| 21-time MLB All-Star | 20 |
| 21-year-old, by most accounts | 29 |
| 210 lines of poetry | 19 |
| 2100 | 4 |
| 2100, to Caesar | 15 |
| 211, to Tiberius | 16 |
| 2110, in Roman numerals | 23 |
| 212 | 3 |
| 212 and 646, in Manhattan | 25 |
| 212 initials | 12 |
| 212 or 718, e.g. | 16 |
| 212 ___ (world record stat for typist Barbara Blackburn) | 56 |
| 212% of L | 9 |
| 213 | 3 |
| 21st Amendment | 14 |
| 21st birthday, e.g. | 19 |
| 21st century First Lady | 23 |
| 21st century popinjay | 21 |
| 21st day of June: pl. | 21 |