| DIPHTHONGISES | • diphthongises v. Third-person singular simple present indicative form of diphthongise. • DIPHTHONGISE v. to make into a diphthong, also DIPHTHONGIZE. | 
| DISSHEATHING | • dissheathing v. Present participle of dissheathe. • DISSHEATHE v. to become unsheathed. | 
| DRAUGHTSMANSHIP | • draughtsmanship n. UK standard spelling of draftsmanship. • DRAUGHTSMANSHIP n. the craft of draughtsman. | 
| HALFHEARTEDNESS | • halfheartedness n. The characteristic of being halfhearted. • half-heartedness n. Alternative form of halfheartedness. • HALFHEARTED n. lacking heart, spirit, or interest. | 
| HANDSBREADTHS | • handsbreadths n. Plural of handsbreadth. • HANDSBREADTH n. the breadth of a hand, also HANDBREADTH. | 
| HARDHEARTEDNESS | • hardheartedness n. (Uncountable) The state of being hardhearted. • hardheartedness n. (Countable) A hardhearted thought or act. • hard-heartedness n. Alternative form of hardheartedness. | 
| HINDSIGHTS | • hindsights n. Plural of hindsight. • HINDSIGHT n. the ability or opportunity to understand and explain an event after it has happened. | 
| HOTHEADEDNESS | • hotheadedness n. The state or characteristic of being hotheaded; the tendency to be easily infuriated or provoked. • hot-headedness n. Alternative spelling of hotheadedness. • HOTHEADED n. rash, impetuous. | 
| HOTHEADEDNESSES | • HOTHEADEDNESS n. HOTHEADED, rash, impetuous. | 
| HOUNDSTOOTHS | Sorry, definition not available. | 
| HYPOCHONDRIASTS | • hypochondriasts n. Plural of hypochondriast. • HYPOCHONDRIAST n. a hypochondriac. | 
| ICHTHYOPSIDANS | • ICHTHYOPSIDAN n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSID. | 
| NIGHTSHADES | • nightshades n. Plural of nightshade. • NIGHTSHADE n. a name given to various plants, esp. of the Solanaceae family and chiefly poisonous or narcotic. | 
| SHORTHANDS | • shorthands n. Plural of shorthand. • shorthands v. Third-person singular simple present indicative form of shorthand. • short-hands n. Plural of short-hand (alternative form of shorthands). | 
| SLEUTHHOUNDS | • sleuthhounds n. Plural of sleuthhound. • sleuth-hounds n. Plural of sleuth-hound. • SLEUTHHOUND n. a bloodhound; (colloquial) a detective. | 
| THICKHEADEDNESS | • thickheadedness n. Stupidity. • THICKHEADEDNESS n. the state of being thickheaded. | 
| THOUSANDTHS | • thousandths n. Plural of thousandth. • THOUSANDTH n. one part in a thousand. | 
| THUNDERFLASHES | • thunderflashes n. Plural of thunderflash. • THUNDERFLASH n. a container, such as a blank shell, filled with explosive powder, which makes a flash and a loud explosion when detonated. | 
| THUNDERSHOWERS | • thundershowers n. Plural of thundershower. • THUNDERSHOWER n. a shower accompanied by lightning and thunder. |