noun, British English - the time after which television programmes with adult content may be broadcast (9 p.m. in Britain)
noun - an important turning point or event marking a major change in history, a situation, or someone’s life
noun, technical - an area of land that separates waters flowing to different rivers, basins, or seas
noun - a person who sees a crime or an accident happen and can describe what they saw
adjective - not working at the moment
noun - a person who talks to others to reach an agreement or to solve a problem
noun - is the act of asking someone (usually a suspect or witness) many questions to get information about a crime
adjective - having been taken by the police and not free to leave
adjective - working secretly, especially as a police officer trying to get information without people knowing who you really are
noun - the place where a crime happened and where the police look for clues and evidence