noun - a progressive neurological disease that affects movement. It causes shaking, stiffness, and difficulty with walking and coordination. It is caused by the loss of dopamine-producing cells in the brain
verb - to secretly tell someone important information, usually to warn them or help the police
noun, formal - the set of reasons or logical basis for a course of action or belief
verb - (of a road) to leave the main road and go in a different direction
noun, technical - the language or dialect spoken by ordinary people in a particular country or region
noun, technical - the male parent of an animal, especially a stallion that is used for breeding
noun - a jacket filled with the soft feathers from ducks or geese, used for warmth