From Longman Dictionary of Contemporary Englishlawmanlaw‧man /ˈlɔːmæn $ ˈlɒː-/ noun (plural lawmen /-men/) [countable] American English informalSCPLAW any officer who is responsible for making sure that the law is obeyed
Examples from the Corpus
lawman• In 32 years as a lawman, Reeves made some 3,000 arrests and killed some 14 men.• Tall, trim and square of jaw, he looks more like a lawman than an outlaw.• He was the best lawman the Old West has ever known. 