| Unit for measuring flow of light | 32 |
| Unit for Louis XIV | 18 |
| Unit for light bulbs | 20 |
| Unit for Lendl | 14 |
| Unit for Lacoste | 16 |
| Unit for Drake | 14 |
| Unit for dangerous situations | 29 |
| Unit for Connors | 16 |
| Unit for Chris or Martina | 25 |
| Unit for Borg | 13 |
| Unit for an electrician | 23 |
| Unit for a lorry | 16 |
| Unit for a frequent flier | 25 |
| Unit for a duel | 15 |
| Unit for a chairmaker | 21 |
| Unit follower | 13 |
| Unit fighting vice | 18 |
| Unit equivalent to 550 foot-pounds per second | 45 |
| Unit equivalent to 3.26 light years | 35 |
| Unit equaling 43,560 sq. ft. | 28 |
| Unit equaling 200 milligrams | 28 |
| Unit equaling 10,000 square meters | 34 |
| Unit equal to one millionth of a meter | 38 |
| Unit equal to one coulomb per second | 36 |
| Unit equal to one candela per square meter | 42 |
| Unit equal to one billion gammas | 32 |
| Unit equal to 61.02 cubic inches | 32 |
| Unit equal to 200 milligrams | 28 |
| Unit equal to 15.432 grains | 27 |
| Unit equal to 100,000,000 maxwells | 34 |
| Unit equal to 10,000 gauss | 26 |
| Unit equal to 0.338 fluid ounce | 31 |
| Unit dosage of radiation | 24 |
| Unit cost word | 14 |
| Unit cohesion | 13 |
| Unit circle radius | 18 |
| Unit charge | 11 |
| Unit by unit, in succession | 27 |
| Unit attachment | 15 |
| Unit at Wimbledon | 17 |
| Unit at the top of a browser | 28 |
| Unit at the Olympics | 20 |
| Unit at Harvard | 15 |
| Unit at a state park | 20 |
| Unit at a reactor | 17 |
| Unit at a pub | 13 |
| Unit amount of sunlight seen? | 29 |
| Unit a little longer than an arm's length | 45 |
| Unit | 4 |
| Unisphere, essentially | 22 |
| Unisphere, e.g. | 15 |
| Unisonally | 10 |
| Unison cheer (1894) | 19 |
| Unisex, as dorms | 16 |
| Unisex wraparound skirt of Polynesia | 36 |
| Unisex wrap | 11 |
| Unisex winter apparel | 21 |
| Unisex wear | 11 |
| Unisex top | 10 |
| Unisex skirts | 13 |
| Unisex shirts | 13 |
| Unisex Shakespearean play? | 26 |
| Unisex nickname | 15 |
| Unisex name meaning "born again" | 42 |
| Unisex name in Russia | 21 |
| Unisex name | 11 |
| Unisex gown of old Greece | 25 |
| Unisex garment | 14 |
| Unisex garb | 11 |
| Unisex fragrance introduced in 1996 | 35 |
| Unisex first name | 17 |
| Unisex dress | 12 |
| Unisex designer cologne | 23 |
| Unisex cologne since 1994 | 25 |
| Unisex casualwear | 17 |
| Unisex casual wear | 18 |
| Unisex accessory | 16 |
| Unisex | 6 |
| Uniroyal product | 16 |
| Uniqueness | 10 |
| Uniquely | 8 |
| Unique, to Caesar | 17 |
| Unique types | 12 |
| Unique TV horse | 15 |
| Unique things | 13 |
| Unique thing or person | 22 |
| Unique thing | 12 |
| Unique stretch in time | 22 |
| Unique soul | 11 |
| Unique shades at the stable? | 28 |
| Unique persons | 14 |
| Unique person, informally | 25 |
| Unique person or thing | 22 |
| Unique person | 13 |
| Unique people | 13 |
| Unique object or person | 23 |
| Unique object | 13 |
| Unique numbers assigned to websites | 35 |
| Unique mystique | 15 |
| Unique items or people | 22 |