| Chrononhotonthologos | Chrononhotonthologos means a famously long, bombastic comic title or an example of overblown language. | Formal | general writing, browsing, and word-collector curiosity |
| Antidisestablishmentarianism | Antidisestablishmentarianism means opposition to the withdrawal of state support from an established church. | Formal | general writing, browsing, and word-collector curiosity |
| Asthenia | Asthenia means abnormal weakness or lack of strength. | Formal | general writing, browsing, and word-collector curiosity |
| Bradycardia | Bradycardia means an abnormally slow heart rate. | Formal | general writing, browsing, and word-collector curiosity |
| Counterrevolutionaries | Counterrevolutionaries means people or groups who oppose a revolution and seek to reverse it. | Formal | general writing, browsing, and word-collector curiosity |
| Decompartmentalization | Decompartmentalization means the process of removing strict divisions between areas, ideas, or activities. | Formal | general writing, browsing, and word-collector curiosity |
| Deinstitutionalization | Deinstitutionalization means the process of moving people or functions out of large institutions and into community-based settings. | Formal | general writing, browsing, and word-collector curiosity |
| Discombobulation | Discombobulation means a state of confusion, disorientation, or mental disorderliness. | Formal | general writing, browsing, and word-collector curiosity |
| Doppelganger | Doppelganger means a double or uncanny look-alike of another person. | Formal | general writing, browsing, and word-collector curiosity |
| Electroencephalograph | Electroencephalograph means a machine that records the electrical activity of the brain. | Formal | general writing, browsing, and word-collector curiosity |