| FORTHOUGHT | • forthought v. Simple past tense and past participle of forthink. • FORTHINK v. to repent; to regret. |
| HODOGRAPHS | • hodographs n. Plural of hodograph. • HODOGRAPH n. a curve of which the radius vector represents the velocity of a moving particle. |
| HOLOGRAPHS | • holographs n. Plural of holograph. • HOLOGRAPH n. a text written entirely in its author's handwriting. |
| HOLOGRAPHY | • holography n. (Physics) a technique for recording, and then reconstructing, the amplitude and phase distributions… • HOLOGRAPHY n. the technique or process of making or using holograms. |
| HOMOGRAPHS | • homographs n. Plural of homograph. • HOMOGRAPH n. one of two or more words that have the same spelling but differ in origin, meaning, and sometimes pronunciation e.g. bow (in hair) and bow (of a ship). |
| HOMOGRAPHY | • homography n. The state or quality of being written in the same way, especially when spelled with the same letters… • homography n. (Geometry) An isomorphism between projective spaces that maps straight lines to straight lines. • HOMOGRAPHY n. a type of transformation that maps straight lines onto another plane. |
| HOROGRAPHY | • horography n. (Historical) local history (in Ancient Greece) that involved the description of events. • horography n. The art of constructing dials or instruments for indicating the hours. • HOROGRAPHY n. the art of constructing sundials or clocks. |
| HYGROPHOBE | • HYGROPHOBE n. a plant growing best where moisture is scanty. |
| ORTHOGRAPH | • orthograph n. An orthographic projection. • ORTHOGRAPH n. a drawing in orthographic projection. |
| PHONOGRAPH | • phonograph n. A device that captures sound waves onto an engraved archive; a lathe. • phonograph n. (Britain, historical) A device that records or plays sound from cylinder records. • phonograph n. (North America, historical) A record player. |
| PHOTOGRAPH | • photograph n. A picture created by projecting an image onto a photosensitive surface such as a chemically treated… • photograph v. (Transitive, intransitive) To take a photograph (of). • photograph v. (Transitive, figurative) To fix permanently in the memory etc. |
| ROUGHHOUSE | • roughhouse n. Rowdy behaviour. • roughhouse v. To behave rowdily or violently. • roughhouse v. To treat roughly or violently. |
| THOROUGHER | • thorougher adj. Comparative form of thorough: more thorough. • THOROUGH adj. complete, also THORO. |
| THOROUGHLY | • thoroughly adv. In a thorough or complete manner. • THOROUGH adv. complete, also THORO. |
| THROUGHOUT | • throughout prep. In every part of; all through. • throughout prep. (Obsolete) Completely through, right the way through. • throughout adv. In every part; everywhere. |
| UNTHOROUGH | • unthorough adj. Not thorough. • UNTHOROUGH adj. not thorough. |