15-letter words containing t, a, u, g, h
- truth-value gap — the possibility in certain semantic systems of a statement being neither true nor false while also not being determinately of any third truth-value, as all my children are asleep uttered by a childless person
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- uncopyrightable — not able to be copyrighted
- walpurgis night — (especially in medieval German folklore) the evening preceding the feast day of St. Walpurgis, when witches congregated, especially on the Brocken.
- weather through — to pass or go safely through a storm, peril, difficulty, etc.