| Text | Length |
| Difficult stage | 15 |
| Difficult task | 14 |
| Difficult tasks | 15 |
| Difficult time | 14 |
| Difficult to endure | 19 |
| Difficult to fathom | 19 |
| Difficult to forget | 19 |
| Difficult to grasp | 18 |
| Difficult to hold | 17 |
| Difficult to lift | 17 |
| Difficult to miss | 17 |
| Difficult to please | 19 |
| Difficult to recall | 19 |
| Difficult to scale | 18 |
| Difficult to solve | 18 |
| Difficult to watch | 18 |
| Difficult trial | 15 |
| Difficult trip | 14 |
| Difficult walk | 14 |
| Difficult weight | 16 |
| Difficult word | 14 |
| Difficult years | 15 |
| Difficult youngster | 19 |
| Difficult, in Soho | 18 |
| Difficult: Prefix | 17 |
| Difficulties | 12 |
| Diffuse slowly | 14 |
| Diffuse through | 15 |
| Diffuse widely | 14 |
| Diffuse, as light | 17 |
| Diffuse, in a way | 17 |
| Diffused through | 16 |
| Diffuses; radiates | 18 |
| Diffusing through | 17 |
| DiFranco of folk | 16 |
| DiFranco of music | 17 |
| DiFranco of song | 16 |
| Dig in Dundee | 14 |
| Dig artifact | 12 |
| Dig deeply (into) | 17 |
| Dig discoveries | 15 |
| Dig discovery | 13 |
| Dig discovery: Var. | 19 |
| Dig find, perhaps | 17 |
| Dig for data | 12 |
| Dig for dirt, maybe | 19 |
| Dig for pay dirt | 16 |
| Dig for squares? | 16 |
| Dig for truffles | 16 |
| Dig in solidly | 14 |
| Dig in the ribs | 15 |
| Dig into files | 14 |
| Dig into, as dinner | 19 |
| Dig like a pig | 14 |
| Dig like crazy | 14 |
| Dig mollusks | 12 |
| Dig new furrows | 15 |
| Dig potatoes | 12 |
| Dig sans tools | 14 |
| Dig they must | 13 |
| Dig this place? | 15 |
| Dig trenches | 12 |
| Dig under water | 15 |
| Dig up dirt? | 12 |
| Dig, for example | 16 |
| Dig, perhaps | 12 |
| Dig, pig-style | 14 |
| Dig, so to speak | 16 |
| Digest digests | 14 |
| Digest, for short | 17 |
| Digested a digest | 17 |
| Digestion aid | 13 |
| Digestion aids | 14 |
| Digestion pathway | 17 |
| Digestion-related | 17 |
| Digestive aid | 13 |
| Digestive aids | 14 |
| Digestive bacteria | 18 |
| Digestive chemical | 18 |
| Digestive enzyme | 16 |
| Digestive enzymes | 17 |
| Digestive fluid | 15 |
| Digestive juice | 15 |
| Digestive protein | 17 |
| Digestive section | 17 |
| Digests digests | 15 |
| Digests of a sort | 17 |
| Digests, for short | 18 |
| Digger's find | 17 |
| Digger's finds | 18 |
| Digger's prize | 18 |
| Digger's strike | 19 |
| Digger's tool | 17 |
| Diggers' grp. | 17 |
| Diggers' needs | 18 |
| Diggers' org. | 17 |
| Digging a lot | 13 |
| Digging animals | 15 |
| Digging for dirt | 16 |
| Digging for dirt? | 17 |
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