noun - a person who secretly gives the police information about criminals or crimes
noun - the level of quality, ability, or intelligence of a person or thing
noun - the most important or difficult part of a problem, issue, or argument
noun, technical - a separate, often stiffened garment worn to shape or support the torso
noun - a type of lamp powered by gas, used especially in the past
noun, technical - impairment of the ability to write, as a result of brain dysfunction
noun - a small, thin stick used for removing food from between the teeth
noun - a cell in the nervous system that sends and receives electrical signals