Arrest: If the police arrest someone, they take them away to ask them about a crime that they might have committed.
Verb. The police arrested her for drinking and driving.
Cell: The smallest basic unit of a plant or animal.
Noun. DNA is stored in the nucleus of a cell.
Bail: An amount of money that a person who has been accused of a crime pays to a law court so that they can be released until their trial
Noun. He was released/remanded on bail (of $100,000).