9-letter words containing t, o, b, r, i
- trebizond — a medieval empire in NE Asia Minor 1204–1461.
- tribology — the study of the effects of friction on moving machine parts and of methods, as lubrication, of obviating them.
- trilobate — having three lobes.
- trilobite — any marine arthropod of the extinct class Trilobita, from the Paleozoic Era, having a flattened, oval body varying in length from 1 inch (2.5 cm) or less to 2 feet (61 cm).
- troubling — to disturb the mental calm and contentment of; worry; distress; agitate.
- tubicolar — living in a self-constructed tube
- umberto i — (Umberto I) 1844–1900, king of Italy 1878–1900.
- verbosity — the state or quality of being verbose; superfluity of words; wordiness: His speeches were always marred by verbosity.
- vibration — the act of vibrating.
- vibratory — capable of or producing vibration.