| Thick piece of concrete | 23 |
| Thick reference book, e.g. | 26 |
| Thick slice, as of cement | 25 |
| Thick soup made with cream | 26 |
| Thick stick-in-the-mud? | 23 |
| Thick upholstery fabric | 23 |
| Thick urban air condition | 25 |
| Thick, messy substance | 22 |
| Thick, sweet Christmas goop | 27 |
| Thick, viscous substances | 25 |
| Thick, waterproof fabric | 24 |
| Thick-bodied river fish | 23 |
| Thick-crust pizza style | 23 |
| Thick-haired dog from Holland | 29 |
| Thick-skinned behemoth | 22 |
| Thick-skinned citrus fruit | 26 |
| Thick-skinned creature | 22 |
| Thick-skinned creatures | 23 |
| Thick-skinned critters | 22 |
| Thick-skinned heavyweight | 25 |
| Thick-skinned herbivore | 23 |
| Thick-skinned herbivores | 24 |
| Thick-skinned inedible fruit | 28 |
| Thick-skinned vegetarian | 24 |
| Thick-trunked African tree | 26 |
| Thick-trunked tropical tree | 27 |
| Thick-veined vegetable | 22 |
| Thicke of the night shows | 25 |
| Thickened areas of skin | 23 |
| Thickener made from seaweed | 27 |
| Thickener used in ice cream | 27 |
| Thickening agent in food | 24 |
| Thickening agent in foods | 25 |
| Thicker on the page, maybe | 26 |
| Thicket of small trees | 22 |
| Thickets of small trees | 23 |
| Thickly entangled, as hair | 26 |
| Thickly flowing liquid | 22 |
| Thickly tangled, as hair | 24 |
| Thickness, as of a tree | 23 |
| Thief hangs around? [Germany] | 29 |
| Thief of Baghdad, e.g. | 22 |
| Thief pardoned by Pilate | 24 |
| Thief's "take" | 28 |
| Thief's accumulation | 24 |
| Thief's sine qua non | 24 |
| Thief, in the Southwest | 23 |
| Thief-turned-sleuth Lupin | 25 |
| Thieu's milieu in 1967 | 26 |
| Thieves may take these | 22 |
| Thieves who pry open windows | 28 |
| Thieves' accumulation | 25 |
| Thieves' adversary | 22 |
| Thieves' arrangement | 24 |
| Thieves' hideout, perhaps | 29 |
| Thieving Tom's father | 25 |
| Thigh muscle, for short | 23 |
| Thigh muscle, informally | 24 |
| Thigh-length winter wear | 24 |
| Thighs may be displayed in it | 29 |
| Thimble on a Monopoly board | 27 |
| Thimble or shoe, in Monopoly | 28 |
| Thimble Theater's Olive | 27 |
| Thimble Theatre surname | 23 |
| Thimblerig item, often | 22 |
| Thin 1960's supermodel | 26 |
| Thin and brittle snack | 22 |
| Thin and nasal in tone | 22 |
| Thin and piping, as music | 25 |
| Thin as ___ (sPAre-set) | 23 |
| Thin blue lines, maybe | 22 |
| Thin cell phone from Motorola | 29 |
| Thin chocolate-coated goody | 27 |
| Thin coat of watercolor | 23 |
| Thin coats of watercolors | 25 |
| Thin construction strips | 24 |
| Thin cut 5. Run-down housing | 28 |
| Thin flakes from the skin | 25 |
| Thin guy's nickname | 23 |
| Thin half of a comedy duo | 25 |
| Thin Japanese wrapping | 22 |
| Thin layer as of wood | 22 |
| Thin layer, as of plastic | 25 |
| Thin Lizzy homeland (Abbr.) | 27 |
| Thin margin of victory | 22 |
| Thin material for book pages | 28 |
| Thin Motorola cell phone | 24 |
| Thin mug with sharp features | 28 |
| Thin paper for carbons | 22 |
| Thin part of a dictionary | 25 |
| Thin person's sobriquet | 27 |
| Thin plate, anatomically | 24 |
| Thin streak, as of smoke | 24 |
| Thin surgical implement | 23 |
| Thin unleavened pancake | 23 |
| Thin wedge for leveling | 23 |
| Thin white linen fabric | 23 |
| Thin woman's revolver? | 26 |
| Thin, coated sheet of iron | 26 |
| Thin, decorative metal | 22 |