How do you say policeman in Japanese?
— 警察官 (けいさつかん, keisatsukan); 警官 (けいかん, keikan)

Group relationships for policeman in Japanese
law法 (ほう, hō)
police警察 (けいさつ, keisatsu)
Specialized synonyms for policeman in Japanese
bull雄牛 (おうし, oushí)
copper銅 (どう, dō; あかがね, akagané: "red metal")
pig豚 (ぶた, buta)