| They're typically found in attics | 37 |
| They're typically known to have big heads | 45 |
| They're typically sold by the dozen | 39 |
| They're unaffiliated: Abbr. | 31 |
| They're unarmed, but could be dangerous | 43 |
| They're unarmed, but dangerous | 34 |
| They're unassisted | 22 |
| They're unbeatable | 22 |
| They're unbeatable in war | 29 |
| They're unbeatable in war? | 30 |
| They're uncertain | 21 |
| They're unclear | 19 |
| They're unconquerable | 25 |
| They're under a bonnet or boot | 34 |
| They're under blotters | 26 |
| They're under cities | 24 |
| They're under exclamation points | 36 |
| They're under hoods | 23 |
| They're under shoulder joints, anatomically | 47 |
| They're under the patellae | 30 |
| They're under your mattress | 31 |
| They're underage | 20 |
| They're underfoot | 21 |
| They're underfoot in India | 30 |
| They're undeveloped | 23 |
| They're undeviating | 23 |
| They're uneven | 18 |
| They're unique | 18 |
| They're universally accepted | 32 |
| They're unlikely to be realized | 35 |
| They're unlikely to bring home the bacon | 44 |
| They're unlikely to work | 28 |
| They're unmatched in footwear | 33 |
| They're unoriginal | 22 |
| They're unpleasant to be around | 35 |
| They're unrefined | 21 |
| They're unreturnable | 24 |
| They're unstressed | 22 |
| They're unsubtle on stage | 29 |
| They're untitled | 20 |
| They're unwanted in beds | 28 |
| They're up | 14 |
| They're up first, in baseball | 33 |
| They're up for awards | 25 |
| They're up for discussion | 29 |
| They're up in arms | 22 |
| They're up in service shops | 31 |
| They're up in the air | 25 |
| They're uplifting | 21 |
| They're used as flavoring in the liqueur raki | 49 |
| They're used during a row | 29 |
| They're used for corner cuts | 32 |
| They're used for making some wines and jellies | 50 |
| They're used for picking things up | 38 |
| They're used for rinsing in restaurants | 43 |
| They're used for S.W.A.K. | 29 |
| They're used for shooting stars | 35 |
| They're used for tracking shots | 35 |
| They're used in a row | 25 |
| They're used in British puzzles | 35 |
| They're used in classified ads | 34 |
| They're used in crunch time | 31 |
| They're used in digging for truffles | 40 |
| They're used in dumping | 27 |
| They're used in emergencies | 31 |
| They're used in mineral processing | 38 |
| They're used in psychological pricing | 41 |
| They're used in repair of fractures | 39 |
| They're used in some searches | 33 |
| They're used in Turkey | 26 |
| They're used in walking the dog | 35 |
| They're used to cook chicken tikka | 38 |
| They're used to determine paternity | 39 |
| They're used to fashion models | 34 |
| They're used to get backstage | 33 |
| They're used to make a stand | 32 |
| They're used to make hollandaise sauce | 42 |
| They're used to make matches | 32 |
| They're used to make the grade | 34 |
| They're used to make zabaglione | 35 |
| They're used to rock the cradle | 35 |
| They're used to scour | 25 |
| They're used to slide across the stage | 42 |
| They're used to stress | 26 |
| They're used to walk the dog | 32 |
| They're useful in making contacts | 37 |
| They're useful on links | 27 |
| They're useless unless they have a ball | 43 |
| They're useless when they run | 33 |
| They're useless without runners | 35 |
| They're usually aimed at heads | 34 |
| They're usually around 100 | 30 |
| They're usually assigned to bases | 37 |
| They're usually blue or brown | 33 |
| They're usually counted last | 32 |
| They're usually covered in white | 36 |
| They're usually cut thin at the deli | 40 |
| They're usually even on one side | 36 |
| They're usually first to raise their hands | 46 |
| They're usually fixed | 25 |