noun, American English - a small toy that consists of a wheel of paper or plastic attached at its center to a stick so that it spins when blown by the wind
noun - a pattern of broken or jagged checks, typically in black and white, resembling the shape of a dog's tooth
noun - a pattern consisting of short parallel lines arranged in a V-shape, resembling the skeleton of a fish
noun - a small camera worn on a police officer's uniform to record what happens while they are on duty
adjective - connected with scientific methods used by the police to solve crimes, such as studying fingerprints or DNA
verb - to secretly tell someone important information, usually to warn them or help the police
noun - the act of making sure that laws and rules are obeyed
noun - the police and other people whose job is to make sure that laws are followed and to protect the public
noun - a special police tool placed on the road to stop a car by making its tires lose air