8-letter words starting with the
- thermite — a mixture of finely-divided metallic aluminum and ferric oxide that when ignited produces extremely high temperatures as the result of the union of the aluminum with the oxygen of the oxide: used in welding, incendiary bombs, etc.
- theropod — any member of the suborder Theropoda, comprising carnivorous dinosaurs that had short forelimbs and walked or ran on their hind legs.
- thesiger — Wilfred (Patrick). 1910–2003, British writer, who explored the Empty Quarter of Arabia (1945–50) and lived with the Iraqi marsh Arabs (1950–58). His books include Arabian Sands (1958), The Marsh Arabs (1964), and My Kenya Days (1994)
- thesis's — a proposition stated or put forward for consideration, especially one to be discussed and proved or to be maintained against objections: He vigorously defended his thesis on the causes of war.
- thespiae — a city at the foot of Mount Helicon where, according to mythology, the Muses performed their games.
- thespian — (often lowercase) pertaining to tragedy or to the dramatic art in general.
- thespius — the founder of the city of Thespiae and the father, by Megamede, of 50 daughters, all of whom bore sons to Hercules.
- thessaly — a region in E Greece: a former division of ancient Greece. 5208 sq. mi. (14,490 sq. km).
- thetical — positive; dogmatic.
- theurgic — a system of beneficent magic practiced by the Egyptian Platonists and others.
- thewless — cowardly; timid.